- car - Karibische Sprachen
- hat - Haïtien (Haiti-Kreolisch)
- ind - Bahasa Indonesia
- lam - Lamba-Sprache (Bantusprache)
- mis - Einzelne andere Sprachen
- mul - Mehrere Sprachen
- nap - Neapel / Mundart
- nbl - Ndebele-Sprache (Transvaal)
- nde - Ndebele-Sprache (Simbabwe)
- rom - Romani (Sprache)
- tog - Tonga (Bantusprache, Sambia)
- und - Nicht zu entscheiden
- yao - Yao-Sprache (Bantusprache)
- zxx - Kein linguistischer Inhalt
- aaa - Ghotuo
- aab - Alumu-Tesu
- aac - Ari
- aad - Amal
- aae - Arbëreshë Albanian
- aaf - Aranadan
- aag - Ambrak
- aah - Abu' Arapesh
- aai - Arifama-Miniafia
- aak - Ankave
- aal - Afade
- aam - Aramanik
- aan - Anambé
- aao - Algerian Saharan Arabic
- aap - Pará Arára
- aaq - Eastern Abnaki
- aar - Danakil-Sprache
- aas - Aasáx
- aat - Arvanitika Albanian
- aau - Abau
- aaw - Solong
- aax - Mandobo Atas
- aay - Aariya
- aaz - Amarasi
- aba - Abé
- abb - Bankon
- abc - Ambala Ayta
- abd - Manide
- abe - Western Abnaki
- abf - Abai Sungai
- abg - Abaga
- abh - Tajiki Arabic
- abi - Abidji
- abj - Aka-Bea
- abk - Abchasisch
- abl - Lampung Nyo
- abm - Abanyom
- abn - Abua
- abo - Abon
- abp - Abellen Ayta
- abq - Abaza
- abr - Abron
- abs - Ambonese Malay
- abt - Ambulas
- abu - Abure
- abv - Baharna Arabic
- abw - Pal
- abx - Inabaknon
- aby - Aneme Wake
- abz - Abui
- aca - Achagua
- acb - Áncá
- acc - Achi, Cubulco
- acd - Gikyode
- ace - Aceh-Sprache
- acf - Saint Lucian Creole French
- ach - Acholi-Sprache
- aci - Aka-Cari
- ack - Aka-Kora
- acl - Akar-Bale
- acm - Mesopotamian Arabic
- acn - Achang
- acp - Eastern Acipa
- acq - Ta'izzi-Adeni Arabic
- acr - Achi
- acs - Acroá
- act - Achterhoeks
- acu - Achuar-Shiwiar
- acv - Achumawi
- acw - Hijazi Arabic
- acx - Omani Arabic
- acy - Cypriot Arabic
- acz - Acheron
- ada - Adangme-Sprache
- adb - Adabe
- add - Dzodinka
- ade - Adele
- adf - Dhofari Arabic
- adg - Andegerebinha
- adh - Adhola
- adi - Adi
- adj - Adioukrou
- adl - Galo
- adn - Adang
- ado - Abu
- adp - Adap
- adq - Adangbe
- adr - Adonara
- ads - Adamorobe Sign Language
- adt - Adnyamathanha
- adu - Aduge
- adw - Amundava
- adx - Amdo Tibetan
- ady - Adygisch
- adz - Adzera
- aea - Areba
- aeb - Tunisian Arabic
- aec - Saidi Arabic
- aed - Argentine Sign Language
- aee - Northeast Pashayi
- aek - Haeke
- ael - Ambele
- aem - Arem
- aen - Armenian Sign Language
- aeq - Aer
- aer - Eastern Arrernte
- aes - Alsea
- aeu - Akeu
- aew - Ambakich
- aex - Amerax
- aey - Amele
- aez - Aeka
- afb - Gulf Arabic
- afd - Andai
- afe - Putukwam
- afg - Afghan Sign Language
- afh - Afrihili
- afi - Akrukay
- afk - Nanubae
- afn - Defaka
- afo - Eloyi
- afp - Tapei
- afr - Afrikaans
- afs - Afro-Seminole Creole
- aft - Afitti
- afu - Awutu
- afz - Obokuitai
- aga - Aguano
- agb - Legbo
- agc - Agatu
- agd - Agarabi
- age - Angal
- agf - Arguni
- agg - Angor
- agh - Ngelima
- agi - Agariya
- agj - Argobba
- agk - Isarog Agta
- agl - Fembe
- agm - Angaataha
- agn - Agutaynen
- ago - Tainae
- agp - Paranan
- agq - Aghem
- agr - Aguaruna
- ags - Esimbi
- agt - Central Cagayan Agta
- agu - Aguacateco
- agv - Remontado Dumagat
- agw - Kahua
- agx - Aghul
- agy - Southern Alta
- agz - Mt. Iriga Agta
- aha - Ahanta
- ahb - Axamb
- ahe - Ahe
- ahg - Qimant
- ahh - Aghu
- ahi - Tiagbamrin Aizi
- ahk - Akha
- ahl - Igo
- ahm - Mobumrin Aizi
- ahn - Àhàn
- aho - Ahom
- ahp - Aproumu Aizi
- ahr - Ahirani
- ahs - Ashe
- aht - Ahtena
- aia - Arosi
- aib - Ainu (China)
- aic - Ainbai
- aid - Alngith
- aie - Amara
- aif - Agi
- aig - Antigua and Barbuda Creole English
- aih - Ai-Cham
- aii - Assyrian Neo-Aramaic
- aij - Lishanid Noshan
- aik - Ake
- ail - Aimele
- aim - Aimol
- ain - Ainu-Sprache
- aio - Aiton
- aip - Burumakok
- aiq - Aimaq
- air - Airoran
- ais - Nataoran Amis
- ait - Arikem
- aiw - Aari
- aix - Aighon
- aiy - Ali
- aiz - Aari
- aja - Aja (Sudan)
- ajg - Aja (Benin)
- aji - Ajië
- ajp - South Levantine Arabic
- ajt - Judeo-Tunisian Arabic
- aju - Judeo-Moroccan Arabic
- ajw - Ajawa
- ajz - Amri Karbi
- aka - Akan-Sprache
- akb - Batak Angkola
- akc - Mpur
- akd - Ukpet-Ehom
- ake - Akawaio
- akf - Akpa
- akg - Anakalangu
- akh - Angal Heneng
- aki - Aiome
- akj - Aka-Jeru
- akk - Akkadisch
- akl - Aklanon
- akm - Aka-Bo
- akn - Amikoana
- ako - Akurio
- akp - Siwu
- akq - Ak
- akr - Araki
- aks - Akaselem
- akt - Akolet
- aku - Akum
- akv - Akhvakh
- akw - Akwa
- akx - Aka-Kede
- aky - Aka-Kol
- akz - Alabama
- ala - Alago
- alc - Qawasqar
- ald - Alladian
- ale - Aleutisch
- alf - Alege
- alh - Alawa
- ali - Amaimon
- alj - Alangan
- alk - Alak
- all - Allar
- alm - Amblong
- aln - Gheg Albanian
- alo - Larike-Wakasihu
- alp - Alune
- alq - Algonquin
- alr - Alutor
- als - Tosk Albanian
- alt - Altaisch
- alu - 'Are'are
- alw - Alaba-K’abeena
- alx - Amol
- aly - Alyawarr
- alz - Alur
- ama - Amanayé
- amb - Ambo
- amc - Amahuaca
- amd - Amapá Creole
- ame - Yanesha'
- amf - Hamer-Banna
- amg - Amarag
- amh - Amharisch
- ami - Amis
- amj - Amdang
- amk - Ambai
- aml - War-Jaintia
- amm - Ama (Papua New Guinea)
- amn - Amanab
- amo - Amo
- amp - Alamblak
- amq - Amahai
- amr - Amarakaeri
- ams - Southern Amami-Oshima
- amt - Amto
- amu - Guerrero Amuzgo
- amv - Ambelau
- amw - Western Neo-Aramaic
- amx - Anmatyerre
- amy - Ami
- amz - Atampaya
- ana - Andaqui
- anb - Andoa
- anc - Ngas
- and - Ansus
- ane - Xârâcùù
- anf - Animere
- ang - Altenglisch
- anh - Nend
- ani - Andi
- anj - Anor
- ank - Goemai
- anl - Anu
- anm - Anal
- ann - Obolo
- ano - Andoque
- anp - Anga-Sprache
- anq - Jarawa (India)
- anr - Andh
- ans - Anserma
- ant - Antakarinya
- anu - Anuak
- anv - Denya
- anw - Anaang
- anx - Andra-Hus
- any - Anyin
- anz - Anem
- aoa - Angolar
- aob - Abom
- aoc - Pemon
- aod - Andarum
- aoe - Angal Enen
- aof - Bragat
- aog - Angoram
- aoh - Arma
- aoi - Anindilyakwa
- aoj - Mufian
- aok - Arhö
- aol - Alor
- aom - Ömie
- aon - Bumbita Arapesh
- aor - Aore
- aos - Taikat
- aot - A'tong
- aox - Atorada
- aoz - Uab Meto
- apb - Sa'a
- apc - North Levantine Arabic
- apd - Sudanese Arabic
- ape - Bukiyip
- apf - Pahanan Agta
- apg - Ampanang
- aph - Athpariya
- api - Apiaká
- apj - Jicarilla Apache
- apk - Kiowa Apache
- apl - Lipan Apache
- apm - Mescalero-Chiricahua Apache
- apn - Apinayé
- apo - Apalik
- app - Apma
- apq - A-Pucikwar
- apr - Arop-Lokep
- aps - Arop-Sissano
- apt - Apatani
- apu - Apurinã
- apv - Alapmunte
- apw - Western Apache
- apx - Aputai
- apy - Apalaí
- apz - Safeyoka
- aqc - Archi
- aqg - Arigidi
- aqm - Atohwaim
- aqn - Northern Alta
- aqp - Atakapa
- aqr - Arhâ
- aqz - Akuntsu
- ara - Arabisch
- arb - Standard Arabic
- arc - Aramäisch
- ard - Arabana
- are - Western Arrarnta
- arf - Arafundi
- arg - Aragonesisch
- arh - Arhuaco
- ari - Arikara
- arj - Arapaso
- ark - Arikapú
- arl - Arabela
- arn - Arauka-Sprachen
- aro - Araona
- arp - Arapaho-Sprache
- arq - Algerian Arabic
- arr - Karo (Brazil)
- ars - Najdi Arabic
- aru - Aruá (Amazonas State)
- arv - Arbore
- arw - Arawak-Sprachen
- arx - Aruá (Rodonia State)
- ary - Moroccan Arabic
- arz - Egyptian Arabic
- asa - Asu (Tanzania)
- asb - Assiniboine
- asc - Casuarina Coast Asmat
- asd - Asas
- ase - American Sign Language
- asf - Australian Sign Language
- asg - Cishingini
- ash - Abishira
- asi - Buruwai
- asj - Nsari
- ask - Ashkun
- asl - Asilulu
- asm - Assamesisch
- asn - Xingú Asuriní
- aso - Dano
- asp - Algerian Sign Language
- asq - Austrian Sign Language
- asr - Asuri
- ass - Ipulo
- ast - Asturisch
- asu - Tocantins Asurini
- asv - Asoa
- asw - Australian Aborigines Sign Language
- asx - Muratayak
- asy - Yaosakor Asmat
- asz - As
- ata - Pele-Ata
- atb - Zaiwa
- atc - Atsahuaca
- atd - Ata Manobo
- ate - Atemble
- atf - Atuence
- atg - Ivbie North-Okpela-Arhe
- ati - Attié
- atj - Atikamekw
- atk - Ati
- atl - Mt. Iraya Agta
- atm - Ata
- atn - Ashtiani
- ato - Atong
- atp - Pudtol Atta
- atq - Aralle-Tabulahan
- atr - Waimiri-Atroari
- ats - Gros Ventre
- att - Pamplona Atta
- atu - Reel
- atv - Northern Altai
- atw - Atsugewi
- atx - Arutani
- aty - Aneityum
- atz - Arta
- aua - Asumboa
- aub - Alugu
- auc - Waorani
- aud - Anuta
- aue - =/Kx'au//'ein
- aug - Aguna
- auh - Aushi
- aui - Anuki
- auj - Awjilah
- auk - Heyo
- aul - Aulua
- aum - Asu (Nigeria)
- aun - Molmo One
- auo - Auyokawa
- aup - Makayam
- auq - Anus
- aur - Aruek
- aut - Austral
- auu - Auye
- auv - Auvergnat
- auw - Awyi
- aux - Aurá
- auy - Awiyaana
- auz - Uzbeki Arabic
- ava - Awarisch
- avb - Avau
- avd - Alviri-Vidari
- ave - Avestisch
- avi - Avikam
- avk - Kotava
- avl - Eastern Egyptian Bedawi Arabic
- avn - Avatime
- avo - Agavotaguerra
- avs - Aushiri
- avt - Au
- avu - Avokaya
- avv - Avá-Canoeiro
- awa - Awadhī
- awb - Awa (Papua New Guinea)
- awc - Cicipu
- awe - Awetí
- awh - Awbono
- awi - Aekyom
- awk - Awabakal
- awm - Arawum
- awn - Awngi
- awo - Awak
- awr - Awera
- aws - South Awyu
- awt - Araweté
- awu - Central Awyu
- awv - Jair Awyu
- aww - Awun
- awx - Awara
- awy - Edera Awyu
- axb - Abipon
- axg - Mato Grosso Arára
- axk - Yaka (Central African Republic)
- axm - Middle Armenian
- axx - Xaragure
- aya - Awar
- ayb - Ayizo Gbe
- ayc - Southern Aymara
- ayd - Ayabadhu
- aye - Ayere
- ayg - Ginyanga
- ayh - Hadrami Arabic
- ayi - Leyigha
- ayk - Akuku
- ayl - Libyan Arabic
- aym - Aymará-Sprache
- ayn - Sanaani Arabic
- ayo - Ayoreo
- ayp - North Mesopotamian Arabic
- ayq - Ayi (Papua New Guinea)
- ayr - Central Aymara
- ays - Sorsogon Ayta
- ayt - Magbukun Ayta
- ayu - Ayu
- ayx - Ayi (China)
- ayy - Tayabas Ayta
- ayz - Mai Brat
- aza - Azha
- azb - South Azerbaijani
- aze - Aserbeidschanisch
- azg - San Pedro Amuzgos Amuzgo
- azj - North Azerbaijani
- azm - Ipalapa Amuzgo
- azo - Awing
- azr - Adzera
- azt - Faire Atta
- azz - Highland Puebla Nahuatl
- baa - Babatana
- bab - Bainouk-Gunyuño
- bac - Badui
- bae - Baré
- baf - Nubaca
- bag - Tuki
- bah - Bahamas Creole English
- baj - Barakai
- bak - Baschkirisch
- bal - Belutschisch
- bam - Bambara-Sprache
- ban - Balinesisch
- bao - Waimaha
- bap - Bantawa
- bar - Bavarian
- bas - Basaa-Sprache
- bau - Bada (Nigeria)
- bav - Vengo
- baw - Bambili-Bambui
- bax - Bamun
- bay - Batuley
- baz - Tunen
- bba - Baatonum
- bbb - Barai
- bbc - Batak Toba
- bbd - Bau
- bbe - Bangba
- bbf - Baibai
- bbg - Barama
- bbh - Bugan
- bbi - Barombi
- bbj - Ghomálá'
- bbk - Babanki
- bbl - Bats
- bbm - Babango
- bbn - Uneapa
- bbo - Northern Bobo Madaré
- bbp - West Central Banda
- bbq - Bamali
- bbr - Girawa
- bbs - Bakpinka
- bbt - Mburku
- bbu - Kulung (Nigeria)
- bbv - Karnai
- bbw - Baba
- bbx - Bubia
- bby - Befang
- bbz - Babalia Creole Arabic
- bca - Central Bai
- bcb - Bainouk-Samik
- bcc - Southern Balochi
- bcd - North Babar
- bce - Bamenyam
- bcf - Bamu
- bcg - Baga Binari
- bch - Bariai
- bci - Baoulé
- bcj - Bardi
- bck - Bunaba
- bcl - Central Bicolano
- bcm - Bannoni
- bcn - Bali (Nigeria)
- bco - Kaluli
- bcp - Bali (Democratic Republic of Congo)
- bcq - Bench
- bcr - Babine
- bcs - Kohumono
- bct - Bendi
- bcu - Awad Bing
- bcv - Shoo-Minda-Nye
- bcw - Bana
- bcy - Bacama
- bcz - Bainouk-Gunyaamolo
- bda - Bayot
- bdb - Basap
- bdc - Emberá-Baudó
- bdd - Bunama
- bde - Bade
- bdf - Biage
- bdg - Bonggi
- bdh - Baka (Sudan)
- bdi - Burun
- bdj - Bai
- bdk - Budukh
- bdl - Indonesian Bajau
- bdm - Buduma
- bdn - Baldemu
- bdo - Morom
- bdp - Bende
- bdq - Bahnar
- bdr - West Coast Bajau
- bds - Burunge
- bdt - Bokoto
- bdu - Oroko
- bdv - Bodo Parja
- bdw - Baham
- bdx - Budong-Budong
- bdy - Bandjalang
- bdz - Badeshi
- bea - Beaver
- beb - Bebele
- bec - Iceve-Maci
- bed - Bedoanas
- bee - Byangsi
- bef - Benabena
- beg - Belait
- beh - Biali
- bei - Bekati'
- bej - Bedauye
- bek - Bebeli
- bel - Weißrussisch
- bem - Bemba-Sprache
- ben - Bengali
- beo - Beami
- bep - Besoa
- beq - Beembe
- bes - Besme
- bet - Guiberoua Béte
- beu - Blagar
- bev - Daloa Bété
- bew - Betawi
- bex - Jur Modo
- bey - Beli (Papua New Guinea)
- bez - Bena (Tanzania)
- bfa - Bari
- bfb - Pauri Bareli
- bfc - Northern Bai
- bfd - Bafut
- bfe - Betaf
- bff - Bofi
- bfg - Busang Kayan
- bfh - Blafe
- bfi - British Sign Language
- bfj - Bafanji
- bfk - Ban Khor Sign Language
- bfl - Banda-Ndélé
- bfm - Mmen
- bfn - Bunak
- bfo - Malba Birifor
- bfp - Beba
- bfq - Badaga
- bfr - Bazigar
- bfs - Southern Bai
- bft - Balti
- bfu - Gahri
- bfw - Bondo
- bfx - Bantayanon
- bfy - Bagheli
- bfz - Mahasu Pahari
- bga - Gwamhi-Wuri
- bgb - Bobongko
- bgc - Haryanvi
- bgd - Rathwi Bareli
- bge - Bauria
- bgf - Bangandu
- bgg - Bugun
- bgi - Giangan
- bgj - Bangolan
- bgk - Bit
- bgl - Bo (Laos)
- bgm - Baga Mboteni
- bgn - Western Balochi
- bgo - Baga Koga
- bgp - Eastern Balochi
- bgq - Bagri
- bgr - Bawm Chin
- bgs - Tagabawa
- bgt - Bughotu
- bgu - Mbongno
- bgv - Warkay-Bipim
- bgw - Bhatri
- bgx - Balkan Gagauz Turkish
- bgy - Benggoi
- bgz - Banggai
- bha - Bharia
- bhb - Bhili
- bhc - Biga
- bhd - Bhadrawahi
- bhe - Bhaya
- bhf - Odiai
- bhg - Binandere
- bhh - Bukharic
- bhi - Bhilali
- bhj - Bahing
- bhk - Bicolano, Albay
- bhl - Bimin
- bhm - Bathari
- bhn - Bohtan Neo-Aramaic
- bho - Bhojpurī
- bhp - Bima
- bhq - Tukang Besi South
- bhr - Bara Malagasy
- bhs - Buwal
- bht - Bhattiyali
- bhu - Bhunjia
- bhv - Bahau
- bhw - Biak
- bhx - Bhalay
- bhy - Bhele
- bhz - Bada (Indonesia)
- bia - Badimaya
- bib - Bissa
- bic - Bikaru
- bid - Bidiyo
- bie - Bepour
- bif - Biafada
- big - Biangai
- bii - Bisu
- bij - Vaghat-Ya-Bijim-Legeri
- bik - Bikol-Sprache
- bil - Bile
- bim - Bimoba
- bin - Edo-Sprache
- bio - Nai
- bip - Bila
- biq - Bipi
- bir - Bisorio
- bis - Beach-la-mar
- bit - Berinomo
- biu - Biete
- biv - Southern Birifor
- biw - Kol (Cameroon)
- bix - Bijori
- biy - Birhor
- biz - Baloi
- bja - Budza
- bjb - Banggarla
- bjc - Bariji
- bjd - Bandjigali
- bje - Biao-Jiao Mien
- bjf - Barzani Jewish Neo-Aramaic
- bjg - Bidyogo
- bjh - Bahinemo
- bji - Burji
- bjj - Kanauji
- bjk - Barok
- bjl - Bulu (Papua New Guinea)
- bjm - Bajelani
- bjn - Banjar
- bjo - Mid-Southern Banda
- bjq - Southern Betsimisaraka Malagasy
- bjr - Binumarien
- bjs - Bajan
- bjt - Balanta-Ganja
- bju - Busuu
- bjv - Bedjond
- bjw - Bakwé
- bjx - Banao Itneg
- bjy - Bayali
- bjz - Baruga
- bka - Kyak
- bkb - Finallig
- bkc - Baka (Cameroon)
- bkd - Binukid
- bke - Bengkulu
- bkf - Beeke
- bkg - Buraka
- bkh - Bakoko
- bki - Baki
- bkj - Pande
- bkk - Brokskat
- bkl - Berik
- bkm - Kom (Cameroon)
- bkn - Bukitan
- bko - Kwa'
- bkp - Boko (Democratic Republic of Congo)
- bkq - Bakairí
- bkr - Bakumpai
- bks - Northern Sorsoganon
- bkt - Boloki
- bku - Buhid
- bkv - Bekwarra
- bkw - Bekwil
- bkx - Baikeno
- bky - Bokyi
- bkz - Bungku
- bla - Blackfoot-Sprache
- blb - Bilua
- blc - Bella Coola
- bld - Bolango
- ble - Balanta-Kentohe
- blf - Buol
- blg - Balau
- blh - Kuwaa
- bli - Bolia
- blj - Bolongan
- blk - Pa'o Karen
- bll - Biloxi
- blm - Beli (Sudan)
- bln - Southern Catanduanes Bicolano
- blo - Anii
- blp - Blablanga
- blq - Baluan-Pam
- blr - Blang
- bls - Balaesang
- blt - Tai Dam
- blu - Hmong Njua
- blv - Bolo
- blw - Balangao
- blx - Mag-Indi Ayta
- bly - Notre
- blz - Balantak
- bma - Lame
- bmb - Bembe
- bmc - Biem
- bmd - Baga Manduri
- bme - Limassa
- bmf - Bom
- bmg - Bamwe
- bmh - Kein
- bmi - Bagirmi
- bmj - Bote-Majhi
- bmk - Ghayavi
- bml - Bomboli
- bmm - Northern Betsimisaraka Malagasy
- bmn - Bina (Papua New Guinea)
- bmo - Bambalang
- bmp - Bulgebi
- bmq - Bomu
- bmr - Muinane
- bms - Bilma Kanuri
- bmt - Biao Mon
- bmu - Burum-Mindik
- bmv - Bum
- bmw - Bomwali
- bmx - Baimak
- bmy - Bemba (Democratic Republic of Congo)
- bmz - Baramu
- bna - Bonerate
- bnb - Bookan
- bnc - Bontok
- bnd - Banda (Indonesia)
- bne - Bintauna
- bnf - Masiwang
- bng - Benga
- bnh - Banawá
- bni - Bangi
- bnj - Eastern Tawbuid
- bnk - Bierebo
- bnl - Boon
- bnm - Batanga
- bnn - Bunun
- bno - Bantoanon
- bnp - Bola
- bnq - Bantik
- bnr - Butmas-Tur
- bns - Bundeli
- bnu - Bentong
- bnv - Bonerif
- bnw - Bisis
- bnx - Bangubangu
- bny - Bintulu
- bnz - Beezen
- boa - Bora
- bob - Aweer
- boc - Kenyah, Bakung
- bod - Tibetisch
- boe - Mundabli
- bof - Bolon
- bog - Bamako Sign Language
- boh - Boma
- boi - Barbareño
- boj - Anjam
- bok - Bonjo
- bol - Bole
- bom - Berom
- bon - Bine
- boo - Tiemacèwè Bozo
- bop - Bonkiman
- boq - Bogaya
- bor - Borôro
- bos - Bosnisch
- bot - Bongo
- bou - Bondei
- bov - Tuwuli
- bow - Rema
- box - Buamu
- boy - Bodo (Central African Republic)
- boz - Tiéyaxo Bozo
- bpa - Dakaka
- bpb - Barbacoas
- bpd - Banda-Banda
- bpg - Bonggo
- bph - Botlikh
- bpi - Bagupi
- bpj - Binji
- bpk - Orowe
- bpl - Broome Pearling Lugger Pidgin
- bpm - Biyom
- bpn - Dzao Min
- bpo - Anasi
- bpp - Kaure
- bpq - Banda Malay
- bpr - Koronadal Blaan
- bps - Sarangani Blaan
- bpt - Barrow Point
- bpu - Bongu
- bpv - Bian Marind
- bpw - Bo (Papua New Guinea)
- bpx - Palya Bareli
- bpy - Bishnupriya
- bpz - Bilba
- bqa - Tchumbuli
- bqb - Bagusa
- bqc - Boko (Benin)
- bqd - Bung
- bqe - Basque, Navarro-Labourdin
- bqf - Baga Kaloum
- bqg - Bago-Kusuntu
- bqh - Baima
- bqi - Bakhtiari
- bqj - Bandial
- bqk - Banda-Mbrès
- bql - Bilakura
- bqm - Wumboko
- bqn - Bulgarian Sign Language
- bqo - Balo
- bqp - Busa
- bqq - Biritai
- bqr - Burusu
- bqs - Bosngun
- bqt - Bamukumbit
- bqu - Boguru
- bqv - Begbere-Ejar
- bqw - Buru (Nigeria)
- bqx - Baangi
- bqy - Bengkala Sign Language
- bqz - Bakaka
- bra - Braj-Bhakha
- brb - Lave
- brc - Berbice Creole Dutch
- brd - Baraamu
- bre - Bretonisch
- brf - Bera
- brg - Baure
- brh - Brahui
- bri - Mokpwe
- brj - Bieria
- brk - Birked
- brl - Birwa
- brm - Barambu
- brn - Boruca
- bro - Brokkat
- brp - Barapasi
- brq - Breri
- brr - Birao
- brs - Baras
- brt - Bitare
- bru - Eastern Bru
- brv - Western Bru
- brw - Bellari
- brx - Bodo (India)
- bry - Burui
- brz - Bilbil
- bsa - Abinomn
- bsb - Brunei Bisaya
- bsc - Bassari
- bsd - Bisaya, Sarawak
- bse - Wushi
- bsf - Bauchi
- bsg - Bashkardi
- bsh - Kati
- bsi - Bassossi
- bsj - Bangwinji
- bsk - Burushaski
- bsl - Basa-Gumna
- bsm - Busami
- bsn - Barasana-Eduria
- bso - Buso
- bsp - Baga Sitemu
- bsq - Bassa
- bsr - Bassa-Kontagora
- bss - Akoose
- bst - Basketo
- bsu - Bahonsuai
- bsv - Baga Sobané
- bsw - Baiso
- bsx - Yangkam
- bsy - Sabah Bisaya
- bsz - Basque, Souletin
- bta - Bata
- btb - Beti
- btc - Bati (Cameroon)
- btd - Batak Dairi
- bte - Gamo-Ningi
- btf - Birgit
- btg - Gagnoa Bété
- bth - Biatah Bidayuh
- bti - Burate
- btj - Bacanese Malay
- btl - Bhatola
- btm - Batak Mandailing
- btn - Ratagnon
- bto - Rinconada Bikol
- btp - Budibud
- btq - Batek
- btr - Baetora
- bts - Batak Simalungun
- btt - Bete-Bendi
- btu - Batu
- btv - Bateri
- btw - Butuanon
- btx - Batak Karo
- bty - Bobot
- btz - Batak Alas-Kluet
- bua - Burjatisch
- bub - Bua
- buc - Bushi
- bud - Ntcham
- bue - Beothuk
- buf - Bushoong
- bug - Bugi-Sprache
- buh - Younuo Bunu
- bui - Bongili
- buj - Basa-Gurmana
- buk - Bugawac
- bul - Bulgarisch
- bum - Bulu (Cameroon)
- bun - Sherbro
- buo - Terei
- bup - Busoa
- buq - Brem
- bus - Bokobaru
- but - Bungain
- buu - Budu
- buv - Bun
- buw - Bubi
- bux - Boghom
- buy - Bullom So
- buz - Bukwen
- bva - Barein
- bvb - Bube
- bvc - Baelelea
- bvd - Baeggu
- bve - Berau Malay
- bvf - Boor
- bvg - Bonkeng
- bvh - Bure
- bvi - Belanda Viri
- bvj - Baan
- bvk - Bukat
- bvl - Bolivian Sign Language
- bvm - Bamunka
- bvn - Buna
- bvo - Bolgo
- bvq - Birri
- bvr - Burarra
- bvt - Bati (Indonesia)
- bvu - Bukit Malay
- bvv - Baniva
- bvw - Boga
- bvx - Dibole
- bvy - Baybayanon
- bvz - Bauzi
- bwa - Bwatoo
- bwb - Namosi-Naitasiri-Serua
- bwc - Bwile
- bwd - Bwaidoka
- bwe - Bwe Karen
- bwf - Boselewa
- bwg - Barwe
- bwh - Bishuo
- bwi - Baniwa
- bwj - Láá Láá Bwamu
- bwk - Bauwaki
- bwl - Bwela
- bwm - Biwat
- bwn - Wunai Bunu
- bwo - Boro (Ethiopia)
- bwp - Mandobo Bawah
- bwq - Southern Bobo Madaré
- bwr - Bura-Pabir
- bws - Bomboma
- bwt - Bafaw-Balong
- bwu - Buli (Ghana)
- bwv - Kenyah, Bahau River
- bww - Bwa
- bwx - Bu-Nao Bunu
- bwy - Cwi Bwamu
- bwz - Bwisi
- bxa - Bauro
- bxb - Belanda Bor
- bxc - Molengue
- bxd - Pela
- bxe - Birale
- bxf - Bilur
- bxg - Bangala
- bxh - Buhutu
- bxi - Pirlatapa
- bxj - Bayungu
- bxk - Bukusu
- bxl - Jalkunan
- bxm - Mongolia Buriat
- bxn - Burduna
- bxo - Barikanchi
- bxp - Bebil
- bxq - Beele
- bxr - Russia Buriat
- bxs - Busam
- bxt - Buxinhua
- bxu - China Buriat
- bxv - Berakou
- bxw - Bankagooma
- bxx - Borna (Democratic Republic of Congo)
- bxz - Binahari
- bya - Batak
- byb - Bikya
- byc - Ubaghara
- byd - Benyadu'
- bye - Pouye
- byf - Bete
- byg - Baygo
- byh - Bhujel
- byi - Buyu
- byj - Bina (Nigeria)
- byk - Biao
- byl - Bayono
- bym - Bidyara
- byn - Bilin-Sprache
- byo - Biyo
- byp - Bumaji
- byq - Basay
- byr - Baruya
- bys - Burak
- byt - Berti
- byu - Buyang
- byv - Medumba
- byw - Belhariya
- byx - Qaqet
- byy - Buya
- byz - Banaro
- bza - Bandi
- bzb - Andio
- bzd - Bribri
- bze - Jenaama Bozo
- bzf - Boikin
- bzg - Babuza
- bzh - Mapos Buang
- bzi - Bisu
- bzj - Belize Kriol English
- bzk - Nicaragua Creole English
- bzl - Boano (Sulawesi)
- bzm - Bolondo
- bzn - Boano (Maluku)
- bzo - Bozaba
- bzp - Kemberano
- bzq - Buli (Indonesia)
- bzr - Biri
- bzs - Brazilian Sign Language
- bzt - Brithenig
- bzu - Burmeso
- bzv - Bebe
- bzw - Basa (Nigeria)
- bzx - Hainyaxo Bozo
- bzy - Obanliku
- bzz - Evant
- caa - Chortí
- cab - Garifuna
- cac - Chuj
- cad - Caddo-Sprachen
- cae - Lehar
- caf - Southern Carrier
- cag - Nivaclé
- cah - Cahuarano
- caj - Chané
- cak - Kaqchikel
- cal - Carolinian
- cam - Cemuhî
- can - Chambri
- cao - Chácobo
- cap - Chipaya
- caq - Car Nicobarese
- cas - Tsimané
- cat - Katalanisch
- cav - Cavineña
- caw - Callawalla
- cax - Chiquitano
- cay - Cayuga
- caz - Canichana
- cbb - Cabiyarí
- cbc - Carapana
- cbd - Carijona
- cbe - Chipiajes
- cbg - Chimila
- cbh - Cagua
- cbi - Chachi
- cbj - Ede Cabe
- cbk - Chavacano
- cbl - Bualkhaw Chin
- cbm - Kaqchikel, Yepocapa Southwestern
- cbn - Nyahkur
- cbo - Izora
- cbr - Cashibo-Cacataibo
- cbs - Cashinahua
- cbt - Chayahuita
- cbu - Candoshi-Shapra
- cbv - Cacua
- cbw - Kinabalian
- cby - Carabayo
- cca - Cauca
- ccc - Chamicuro
- ccd - Cafundo Creole
- cce - Chopi
- ccg - Samba Daka
- cch - Atsam
- ccj - Kasanga
- ccl - Cutchi-Swahili
- ccm - Malaccan Creole Malay
- cco - Comaltepec Chinantec
- ccp - Chakma
- ccq - Chaungtha
- ccr - Cacaopera
- cda - Choni
- cde - Chenchu
- cdf - Chiru
- cdg - Chamari
- cdh - Chambeali
- cdi - Chodri
- cdj - Churahi
- cdm - Chepang
- cdn - Chaudangsi
- cdo - Min Dong Chinese
- cdr - Cinda-Regi-Tiyal
- cds - Chadian Sign Language
- cdy - Chadong
- cdz - Koda
- cea - Lower Chehalis
- ceb - Cebuano
- ceg - Chamacoco
- cen - Cen
- ces - Tschechisch
- cet - Centúúm
- cfa - Dijim-Bwilim
- cfd - Cara
- cfg - Como Karim
- cfm - Falam Chin
- cga - Changriwa
- cgc - Kagayanen
- cgg - Chiga
- cgk - Chocangacakha
- cha - Chamorro-Sprache
- chb - Chibcha-Sprachen
- chc - Catawba
- chd - Highland Oaxaca Chontal
- che - Tschetschenisch
- chf - Tabasco Chontal
- chg - Tschagataisch
- chh - Chinook
- chj - Ojitlán Chinantec
- chk - Trukesisch
- chl - Cahuilla
- chm - Tscheremissisch
- chn - Chinook-Jargon
- cho - Choctaw-Sprache
- chp - Chipewyan-Sprache
- chq - Quiotepec Chinantec
- chr - Cherokee-Sprache
- chs - Chumash
- cht - Cholón
- chu - Kirchenslawisch
- chv - Tschuwaschisch
- chw - Chuwabu
- chx - Chantyal
- chy - Cheyenne-Sprache
- chz - Ozumacín Chinantec
- cia - Cia-Cia
- cib - Ci Gbe
- cic - Chickasaw
- cid - Chimariko
- cie - Cineni
- cih - Chinali
- cik - Chitkuli Kinnauri
- cim - Cimbrian
- cin - Cinta Larga
- cip - Chiapanec
- cir - Tiri
- cit - Chittagonian
- ciw - Chippewa
- ciy - Chaima
- cja - Western Cham
- cje - Chru
- cjh - Upper Chehalis
- cji - Chamalal
- cjk - Chokwe
- cjm - Eastern Cham
- cjn - Chenapian
- cjo - Ashéninka Pajonal
- cjp - Cabécar
- cjr - Chorotega
- cjs - Shor
- cjv - Chuave
- cjy - Jinyu Chinese
- cka - Khumi Awa Chin
- ckb - Central Kurdish
- ckc - Kaqchikel, Northern
- ckd - Kaqchikel, South Central
- cke - Kaqchikel, Eastern
- ckf - Kaqchikel, Southern
- ckh - Chak
- cki - Kaqchikel, Santa María de Jesús
- ckj - Kaqchikel, Santo Domingo Xenacoj
- ckk - Kaqchikel, Akatenango Southwestern
- ckl - Cibak
- cko - Anufo
- ckq - Kajakse
- ckr - Kairak
- cks - Tayo
- ckt - Chukot
- cku - Koasati
- ckv - Kavalan
- ckw - Kaqchikel, Western
- ckx - Caka
- cky - Cakfem-Mushere
- ckz - Cakchiquel-Quiché Mixed Language
- cla - Ron
- clc - Chilcotin
- cld - Chaldean Neo-Aramaic
- cle - Lealao Chinantec
- clh - Chilisso
- cli - Chakali
- clk - Idu-Mishmi
- cll - Chala
- clm - Clallam
- clo - Lowland Oaxaca Chontal
- clu - Caluyanun
- clw - Chulym
- cly - Eastern Highland Chatino
- cma - Maa
- cme - Cerma
- cmg - Classical Mongolian
- cmi - Emberá-Chamí
- cmk - Chimakum
- cml - Campalagian
- cmm - Michigamea
- cmn - Mandarin Chinese
- cmo - Central Mnong
- cmr - Mro Chin
- cms - Messapic
- cmt - Camtho
- cna - Changthang
- cnb - Chinbon Chin
- cnc - Côông
- cng - Northern Qiang
- cnh - Haka Chin
- cni - Asháninka
- cnk - Khumi Chin
- cnl - Lalana Chinantec
- cnm - Chuj, Ixtatán
- cno - Con
- cns - Central Asmat
- cnt - Tepetotutla Chinantec
- cnu - Chenoua
- cnw - Ngawn Chin
- cnx - Middle Cornish
- coa - Cocos Islands Malay
- cob - Chicomuceltec
- coc - Cocopa
- cod - Cocama-Cocamilla
- coe - Koreguaje
- cof - Colorado
- cog - Chong
- coh - Chonyi-Dzihana-Kauma
- coj - Cochimi
- cok - Santa Teresa Cora
- col - Columbia-Wenatchi
- com - Comanche
- con - Cofán
- coo - Comox
- cop - Koptisch
- coq - Coquille
- cor - Kornisch
- cos - Korsisch
- cot - Caquinte
- cou - Wamey
- cov - Cao Miao
- cow - Cowlitz
- cox - Nanti
- coy - Coyaima
- coz - Chochotec
- cpa - Palantla Chinantec
- cpb - Ucayali-Yurúa Ashéninka
- cpc - Ajyíninka Apurucayali
- cpg - Cappadocian Greek
- cpi - Chinese Pidgin English
- cpn - Cherepon
- cps - Capiznon
- cpu - Pichis Ashéninka
- cpx - Pu-Xian Chinese
- cpy - South Ucayali Ashéninka
- cqd - Chuanqiandian Cluster Miao
- cqu - Chilean Quechua
- cra - Chara
- crb - Island Carib
- crc - Lonwolwol
- crd - Coeur d'Alene
- cre - Cree-Sprache
- crf - Caramanta
- crg - Michif
- crh - Krimtatarisch
- cri - Sãotomense
- crj - Southern East Cree
- crk - Plains Cree
- crl - Northern East Cree
- crm - Moose Cree
- crn - El Nayar Cora
- cro - Crow
- crq - Iyo'wujwa Chorote
- crr - Carolina Algonquian
- crs - Seselwa Creole French
- crt - Iyojwa'ja Chorote
- cru - Carútana
- crv - Chaura
- crw - Chrau
- crx - Carrier
- cry - Cori
- crz - Cruzeño
- csa - Chiltepec Chinantec
- csb - Kaschubisch
- csc - Catalan Sign Language
- csd - Chiangmai Sign Language
- cse - Czech Sign Language
- csf - Cuba Sign Language
- csg - Chilean Sign Language
- csh - Asho Chin
- csi - Coast Miwok
- csk - Jola-Kasa
- csl - Chinese Sign Language
- csm - Central Sierra Miwok
- csn - Colombian Sign Language
- cso - Sochiapam Chinantec
- csq - Croatia Sign Language
- csr - Costa Rican Sign Language
- css - Southern Ohlone
- cst - Northern Ohlone
- csw - Swampy Cree
- csy - Siyin Chin
- csz - Coos
- cta - Tataltepec Chatino
- ctc - Chetco
- ctd - Tedim Chin
- cte - Tepinapa Chinantec
- ctg - Chittagonian
- cti - Chol, Tila
- ctl - Tlacoatzintepec Chinantec
- ctm - Chitimacha
- ctn - Chhintange
- cto - Emberá-Catío
- ctp - Western Highland Chatino
- cts - Northern Catanduanes Bicolano
- ctt - Wayanad Chetti
- ctu - Chol
- ctz - Zacatepec Chatino
- cua - Cua
- cub - Cubeo
- cuc - Usila Chinantec
- cug - Cung
- cuh - Chuka
- cui - Cuiba
- cuj - Mashco Piro
- cuk - San Blas Kuna
- cul - Culina
- cum - Cumeral
- cun - Kiche, Cunén
- cuo - Cumanagoto
- cup - Cupeño
- cuq - Cun
- cur - Chhulung
- cut - Teutila Cuicatec
- cuu - Tai Ya
- cuv - Cuvok
- cuw - Chukwa
- cux - Tepeuxila Cuicatec
- cvg - Chug
- cvn - Valle Nacional Chinantec
- cwa - Kabwa
- cwb - Maindo
- cwd - Woods Cree
- cwe - Kwere
- cwg - Chewong
- cwt - Kuwaataay
- cya - Nopala Chatino
- cyb - Cayubaba
- cym - Walisisch
- cyo - Cuyonon
- czh - Huizhou Chinese
- czk - Knaanic
- czn - Zenzontepec Chatino
- czo - Min Zhong Chinese
- czt - Zotung Chin
- daa - Dangaléat
- dac - Dambi
- dad - Marik
- dae - Duupa
- daf - Dan
- dag - Dagbani
- dah - Gwahatike
- dai - Day
- daj - Dar Fur Daju
- dak - Dakota-Sprache
- dal - Dahalo
- dam - Damakawa
- dan - Dänisch
- dao - Daai Chin
- dap - Nisi (India)
- daq - Dandami Maria
- dar - Darginisch
- das - Daho-Doo
- dat - Darang Deng
- dau - Dar Sila Daju
- dav - Taita
- daw - Davawenyo
- dax - Dayi
- daz - Dao
- dba - Bangi Me
- dbb - Deno
- dbd - Dadiya
- dbe - Dabe
- dbf - Edopi
- dbg - Dogul Dom Dogon
- dbi - Doka
- dbj - Ida'an
- dbl - Dyirbal
- dbm - Duguri
- dbn - Duriankere
- dbo - Dulbu
- dbp - Duwai
- dbq - Daba
- dbr - Dabarre
- dbu - Bondum Dom Dogon
- dbv - Dungu
- dby - Dibiyaso
- dcc - Deccan
- dcr - Negerhollands
- ddd - Dongotono
- dde - Doondo
- ddg - Fataluku
- ddi - West Goodenough
- ddj - Jaru
- ddn - Dendi (Benin)
- ddo - Dido
- dds - Donno So Dogon
- ddw - Dawera-Daweloor
- dec - Dagik
- ded - Dedua
- dee - Dewoin
- def - Dezfuli
- deg - Degema
- deh - Dehwari
- dei - Demisa
- dek - Dek
- del - Delaware-Sprache
- dem - Dem
- den - Slave-Sprache
- dep - Pidgin Delaware
- deq - Dendi (Central African Republic)
- der - Deori
- des - Desano
- deu - Deutsch
- dev - Domung
- dez - Dengese
- dga - Southern Dagaare
- dgb - Bunoge Dogon
- dgc - Casiguran Dumagat Agta
- dgd - Dagaari Dioula
- dge - Degenan
- dgg - Doga
- dgh - Dghwede
- dgi - Northern Dagara
- dgk - Dagba
- dgn - Dagoman
- dgo - Dogri (individual language)
- dgr - Dogrib-Sprache
- dgs - Dogoso
- dgu - Degaru
- dgx - Doghoro
- dgz - Daga
- dha - Dhanwar (India)
- dhd - Dhundari
- dhg - Dhangu
- dhi - Dhimal
- dhl - Dhalandji
- dhm - Zemba
- dhn - Dhanki
- dho - Dhodia
- dhr - Dhargari
- dhs - Dhaiso
- dhu - Dhurga
- dhv - Dehu
- dhw - Dhanwar (Nepal)
- dia - Dia
- dib - South Central Dinka
- dic - Lakota Dida
- did - Didinga
- dif - Dieri
- dig - Digo
- dih - Kumiai
- dii - Dimbong
- dij - Dai
- dik - Southwestern Dinka
- dil - Dilling
- dim - Dime
- din - Dinka-Sprache
- dio - Dibo
- dip - Northeastern Dinka
- diq - Dimli (individual language)
- dir - Dirim
- dis - Dimasa
- dit - Dirari
- diu - Diriku
- div - Maledivisch
- diw - Northwestern Dinka
- dix - Dixon Reef
- diy - Diuwe
- diz - Ding
- djb - Djinba
- djc - Dar Daju Daju
- djd - Djamindjung
- dje - Zarma
- djf - Djangun
- dji - Djinang
- djj - Djeebbana
- djk - Eastern Maroon Creole
- djl - Djiwarli
- djm - Jamsay Dogon
- djn - Djauan
- djo - Jangkang
- djr - Djambarrpuyngu
- dju - Kapriman
- djw - Djawi
- dka - Dakpakha
- dkk - Dakka
- dkl - Kolum So Dogon
- dkr - Kuijau
- dks - Southeastern Dinka
- dkx - Mazagway
- dlc - Dalecarlian
- dlg - Dolgan
- dlm - Dalmatian
- dln - Darlong
- dma - Duma
- dmc - Dimir
- dme - Dugwor
- dmg - Upper Kinabatangan
- dmk - Domaaki
- dml - Dameli
- dmm - Dama
- dmo - Kemezung
- dmr - East Damar
- dms - Dampelas
- dmu - Dubu
- dmv - Dumpas
- dmx - Dema
- dmy - Demta
- dna - Upper Grand Valley Dani
- dnd - Daonda
- dne - Ndendeule
- dng - Dungan
- dni - Lower Grand Valley Dani
- dnk - Dengka
- dnn - Dzùùngoo
- dnr - Danaru
- dnt - Mid Grand Valley Dani
- dnu - Danau
- dnw - Western Dani
- dny - Dení
- doa - Dom
- dob - Dobu
- doc - Northern Dong
- doe - Doe
- dof - Domu
- doh - Dong
- doi - Dogrī
- dok - Dondo
- dol - Doso
- don - Toura (Papua New Guinea)
- doo - Dongo
- dop - Lukpa
- doq - Dominican Sign Language
- dor - Dori'o
- dos - Dogosé
- dot - Dass
- dov - Dombe
- dow - Doyayo
- dox - Bussa
- doy - Dompo
- doz - Dorze
- dpp - Papar
- drb - Dair
- drd - Darmiya
- dre - Dolpo
- drg - Rungus
- drh - Darkhat
- dri - C'lela
- drl - Darling
- drn - West Damar
- dro - Daro-Matu Melanau
- drq - Dura
- drr - Dororo
- drs - Gedeo
- drt - Drents
- dru - Rukai
- drw - Darwazi
- dry - Darai
- dsb - Niedersorbisch
- dse - Dutch Sign Language
- dsh - Daasanach
- dsi - Disa
- dsl - Danish Sign Language
- dsn - Dusner
- dso - Desiya
- dsq - Tadaksahak
- dta - Daur
- dtb - Labuk-Kinabatangan Kadazan
- dti - Ana Tinga Dogon
- dtk - Tene Kan Dogon
- dtm - Tomo Kan Dogon
- dtp - Central Dusun
- dtr - Lotud
- dts - Toro So Dogon
- dtt - Toro Tegu Dogon
- dtu - Tebul Ure Dogon
- dua - Duala-Sprachen
- dub - Dubli
- duc - Duna
- dud - Hun-Saare
- due - Umiray Dumaget Agta
- duf - Dumbea
- dug - Duruma
- duh - Dungra Bhil
- dui - Dumun
- duj - Dhuwal
- duk - Duduela
- dul - Alabat Island Agta
- dum - Mittelniederländisch
- dun - Dusun Deyah
- duo - Dupaninan Agta
- dup - Duano
- duq - Dusun Malang
- dur - Dii
- dus - Dumi
- duu - Drung
- duv - Duvle
- duw - Dusun Witu
- dux - Duungooma
- duy - Dicamay Agta
- duz - Duli
- dva - Duau
- dwa - Diri
- dwl - Walo Kumbe Dogon
- dwr - Dawro
- dws - Dutton World Speedwords
- dww - Dawawa
- dya - Dyan
- dyb - Dyaberdyaber
- dyd - Dyugun
- dyg - Villa Viciosa Agta
- dyi - Djimini Senoufo
- dyk - Dayak, Land
- dym - Yanda Dom Dogon
- dyn - Dyangadi
- dyo - Jola-Fonyi
- dyu - Dyula-Sprache
- dyy - Dyaabugay
- dza - Tunzu
- dzd - Daza
- dzg - Dazaga
- dzl - Dzalakha
- dzn - Dzando
- dzo - Dzongkha
- ebg - Ebughu
- ebk - Eastern Bontok
- ebo - Teke-Ebo
- ebr - Ebrié
- ebu - Embu
- ecr - Eteocretan
- ecs - Ecuadorian Sign Language
- ecy - Eteocypriot
- eee - E
- efa - Efai
- efe - Efe
- efi - Efik
- ega - Ega
- egl - Emilian
- ego - Eggon
- egy - Ägyptisch
- ehu - Ehueun
- eip - Eipomek
- eit - Eitiep
- eiv - Askopan
- eja - Ejamat
- eka - Ekajuk
- eke - Ekit
- ekg - Ekari
- eki - Eki
- ekk - Standard Estonian
- ekl - Kol
- ekm - Elip
- eko - Koti
- ekp - Ekpeye
- ekr - Yace
- eky - Eastern Kayah
- ele - Elepi
- elh - El Hugeirat
- eli - Nding
- elk - Elkei
- ell - (Neu-)Griechisch
- elm - Eleme
- elo - El Molo
- elp - Elpaputih
- elu - Elu
- elx - Elamisch
- ema - Emai-Iuleha-Ora
- emb - Embaloh
- eme - Emerillon
- emg - Meohang, Eastern
- emi - Mussau-Emira
- emk - Maninkakan, Eastern
- eml - Emiliano-Romagnolo
- emm - Mamulique
- emn - Eman
- emo - Emok
- emp - Emberá, Northern
- ems - Pacific Gulf Yupik
- emu - Muria, Eastern
- emw - Emplawas
- emy - Epigraphic Mayan
- ena - Apali
- enb - Endo
- enc - En
- end - Ende
- enf - Forest Enets
- eng - Englisch
- enh - Tundra Enets
- eni - Enim
- enm - Mittelenglisch
- enn - Engenni
- eno - Enggano
- enq - Enga
- enr - Emumu
- enu - Enu
- env - Enwan (Edu State)
- enw - Enwan
- eot - Beti
- epi - Epie
- epo - Esperanto
- era - Eravallan
- erg - Sie
- erh - Eruwa
- eri - Ogea
- erk - Efate, South
- ero - Horpa
- err - Erre
- ers - Ersu
- ert - Eritai
- erw - Erokwanas
- ese - Ese Ejja
- esh - Eshtehardi
- esi - Inupiatun, North Alaskan
- esk - Inupiatun, Northwest Alaska
- esl - Egypt Sign Language
- esm - Esuma
- esn - Salvadoran Sign Language
- eso - Estonian Sign Language
- esq - Esselen
- ess - Central Siberian Yupik
- est - Estnisch
- esu - Central Yupik
- etb - Etebi
- etc - Etchemin
- eth - Ethiopian Sign Language
- etn - Eton
- eto - Eton
- etr - Edolo
- ets - Yekhee
- ett - Etruscan
- etu - Ejagham
- etx - Eten
- etz - Semimi
- eur - Europanto
- eus - Baskisch
- eve - Even
- evh - Uvbie
- evn - Evenki
- ewe - Ewe-Sprache
- ewo - Ewondo
- ext - Extremaduran
- eya - Eyak
- eyo - Keiyo
- eze - Uzekwe
- faa - Fasu
- fab - Fa Dambu
- fad - Wagi
- faf - Fagani
- fag - Finongan
- fah - Baissa Fali
- fai - Faiwol
- faj - Faita
- fak - Fang (Cameroon)
- fal - Fali, South
- fam - Fam
- fan - Pangwe-Sprache
- fao - Färöisch
- fap - Palor
- far - Fataleka
- fas - Persisch
- fat - Fante-Sprache
- fau - Fayu
- fax - Fala
- fay - Southwestern Fars
- faz - Northwestern Fars
- fcs - Quebec Sign Language
- fer - Feroge
- ffi - Foia Foia
- ffm - Fulfulde, Maasina
- fgr - Fongoro
- fia - Nobiin
- fie - Fyer
- fij - Fidschi-Sprache
- fil - Pilipino
- fin - Finnisch
- fip - Fipa
- fir - Firan
- fit - Finnish, Tornedalen
- fiw - Fiwaga
- fiz - Izere
- fkv - Finnish, Kven
- fla - Kalispel-Pend Doreille
- flh - Foau
- fli - Fali
- fll - Fali, North
- fln - Flinders Island
- flr - Fuliiru
- fly - Tsotsitaal
- fmp - Fefe
- fmu - Muria, Far Western
- fng - Fanagalo
- fni - Fania
- fod - Foodo
- foi - Foi
- fom - Foma
- fon - Fon-Sprache
- for - Fore
- fos - Siraya
- fpe - Fernando Po Creole English
- fqs - Fas
- fra - Französisch
- frc - French, Cajun
- frd - Fordata
- fri - Frisian, Western
- frk - Frankish
- frm - Mittelfranzösisch
- fro - Altfranzösisch
- frp - Franco-Provençal
- frq - Forak
- frr - Nordfriesisch
- frs - Ostfriesisch
- frt - Fortsenal
- fry - Friesisch
- fse - Finnish Sign Language
- fsl - French Sign Language
- fss - Finland-Swedish Sign Language
- fub - Fulfulde, Adamawa
- fuc - Pulaar
- fud - Futuna, East
- fue - Fulfulde, Borgu
- fuf - Pular
- fuh - Fulfulde, Western Niger
- fui - Fulfulde, Bagirmi
- fuj - Ko
- ful - Ful
- fum - Fum
- fun - Fulniô
- fuq - Fulfulde, Central-Eastern Niger
- fur - Friulisch
- fut - Futuna-Aniwa
- fuu - Furu
- fuv - Fulfulde, Nigerian
- fuy - Fuyug
- fvr - Fur
- fwa - Fwâi
- fwe - Fwe
- gaa - Ga-Sprache
- gab - Gabri
- gad - Gaddang
- gae - Guarequena
- gaf - Gende
- gag - Gagauz
- gah - Alekano
- gai - Borei
- gaj - Gadsup
- gak - Gamkonora
- gal - Galoli
- gam - Kandawo
- gan - Chinese, Gan
- gao - Gants
- gap - Gal
- gaq - Gata
- gar - Galeya
- gas - Garasia, Adiwasi
- gat - Kenati
- gau - Gadaba, Mudhili
- gav - Gabutamon
- gaw - Nobonob
- gax - Borana-Arsi-Guji Oromo
- gay - Gayo-Sprache
- gaz - West Central Oromo
- gba - Gbaya-Sprache
- gbb - Kaytetye
- gbc - Garawa
- gbd - Karadjeri
- gbe - Niksek
- gbf - Gaikundi
- gbg - Gbanziri
- gbh - Defi Gbe
- gbi - Galela
- gbj - Gadaba, Bodo
- gbk - Gaddi
- gbl - Gamit
- gbm - Garhwali
- gbn - Moda
- gbo - Grebo, Northern
- gbp - Gbaya-Bossangoa
- gbq - Gbaya-Bozoum
- gbr - Gbagyi
- gbs - Gbesi Gbe
- gbu - Gagadu
- gbv - Gbanu
- gbx - Eastern Xwla Gbe
- gby - Gbari
- gbz - Dari, Zoroastrian
- gcc - Mali
- gcd - Ganggalida
- gce - Galice
- gcf - Guadeloupean Creole French
- gcl - Grenadian Creole English
- gcn - Gaina
- gcr - Guianese Creole French
- gct - German, Colonia Tovar
- gda - Lohar, Gade
- gdb - Gadaba, Pottangi Ollar
- gdc - Gugu Badhun
- gdd - Gedaged
- gde - Gude
- gdf - Guduf-Gava
- gdg - Gadang
- gdh - Gadjerawang
- gdi - Gundi
- gdj - Gurdjar
- gdk - Gadang
- gdl - Dirasha
- gdm - Laal
- gdn - Umanakaina
- gdo - Ghodoberi
- gdq - Mehri
- gdr - Wipi
- gdu - Gudu
- gdx - Godwari
- gea - Geruma
- geb - Kire
- gec - Grebo, Gboloo
- ged - Gade
- geg - Gengle
- geh - German, Hutterite
- gei - Gebe
- gej - Gen
- gek - Yiwom
- gel - Kag-Fer-Jiir-Koor-Ror-Us-Zuksun
- gen - Geman Deng
- geq - Geme
- ges - Geser-Gorom
- gew - Gera
- gex - Garre
- gey - Enya
- gez - Altäthiopisch
- gfk - Patpatar
- gft - Gafat
- gga - Gao
- ggb - Gbii
- ggd - Gugadj
- gge - Guragone
- ggg - Gurgula
- ggh - Garreh-Ajuran
- ggk - Kungarakany
- ggl - Ganglau
- ggn - Gurung, Eastern
- ggo - Gondi, Southern
- ggr - Aghu Tharnggalu
- ggt - Gitua
- ggu - Gagu
- ggw - Gogodala
- gha - Ghadamès
- ghc - Hiberno-Scottish Gaelic
- ghe - Ghale, Southern
- ghh - Ghale, Northern
- ghk - Karen, Geko
- ghl - Ghulfan
- ghn - Ghanongga
- gho - Ghomara
- ghr - Ghera
- ghs - Guhu-Samane
- ght - Ghale, Kutang
- gia - Kitja
- gib - Gibanawa
- gic - Gail
- gid - Gidar
- gig - Goaria
- gil - Gilbertesisch
- gim - Gimi
- gin - Hinukh
- gio - Gelao
- gip - Gimi
- giq - Green Gelao
- gir - Red Gelao
- gis - Giziga, North
- git - Gitxsan
- giw - White Gelao
- gix - Gilima
- giy - Giyug
- giz - Giziga, South
- gji - Geji
- gjk - Koli, Kachi
- gjn - Gonja
- gju - Gujari
- gka - Guya
- gke - Ndai
- gkn - Gokana
- gkp - Kpelle, Guinea
- gla - Gälisch-Schottisch
- glc - Bon Gula
- gld - Nanai
- gle - Irisch
- glg - Galicisch
- glh - Northwest Pashayi
- gli - Guliguli
- glj - Gula Iro
- glk - Gilaki
- glo - Galambu
- glr - Glaro-Twabo
- glu - Gula
- glv - Manx
- glw - Glavda
- gly - Gule
- gma - Gambera
- gmb - Gulaalaa
- gmd - Mághdì
- gmh - Mittelhochdeutsch
- gml - Middle Low German
- gmm - Gbaya-Mbodomo
- gmn - Gimnime
- gmo - Gamo-Gofa-Dawro
- gmu - Gumalu
- gmv - Gamo
- gmx - Magoma
- gmy - Mycenaean Greek
- gna - Kaansa
- gnb - Gangte
- gnc - Guanche
- gnd - Zulgo-Gemzek
- gne - Ganang
- gng - Ngangam
- gnh - Lere
- gni - Gooniyandi
- gnk - ||Gana
- gnl - Gangulu
- gnm - Ginuman
- gnn - Gumatj
- gno - Gondi, Northern
- gnq - Gana
- gnr - Gureng Gureng
- gnt - Guntai
- gnu - Gnau
- gnw - Guaraní, Western Bolivian
- gnz - Ganzi
- goa - Guro
- gob - Playero
- goc - Gorakor
- god - Godié
- goe - Gongduk
- gof - Gofa
- gog - Gogo
- goh - Althochdeutsch
- goi - Gobasi
- goj - Gowlan
- gok - Gowli
- gol - Gola
- gom - Konkani, Goanese
- gon - Gondi-Sprache
- goo - Gone Dau
- gop - Yeretuar
- goq - Gorap
- gor - Gorontalesisch
- gos - Gronings
- got - Gotisch
- gou - Gavar
- gow - Gorowa
- gox - Gobu
- goy - Goundo
- goz - Gozarkhani
- gpa - Gupa-Abawa
- gpn - Taiap
- gqa - Gaanda
- gqi - Guiqiong
- gqn - Guana
- gqr - Gor
- gra - Garasia, Rajput
- grb - Grebo-Sprache
- grc - Griechisch
- grd - Guruntum-Mbaaru
- grg - Madi
- grh - Gbiri-Niragu
- gri - Ghari
- grj - Grebo, Southern
- grm - Kota Marudu Talantang
- grn - Guaraní-Sprache
- gro - Groma
- grq - Gorovu
- grr - Taznatit
- grs - Gresi
- grt - Garo
- gru - Kistane
- grv - Grebo, Central
- grw - Gweda
- grx - Guriaso
- gry - Grebo, Barclayville
- grz - Guramalum
- gsc - Gascon
- gse - Ghanaian Sign Language
- gsg - German Sign Language
- gsl - Gusilay
- gsm - Guatemalan Sign Language
- gsn - Gusan
- gso - Southwest Gbaya
- gsp - Wasembo
- gss - Greek Sign Language
- gsw - Schweizerdeutsch
- gta - Guató
- gti - Gbati-ri
- gua - Shiki
- gub - Guajajára
- guc - Wayuu
- gud - Dida, Yocoboué
- gue - Gurinji
- guf - Gupapuyngu
- gug - Guaraní, Paraguayan
- guh - Guahibo
- gui - Guaraní, Eastern Bolivian
- guj - Gujarātī-Sprache
- guk - Gumuz
- gul - Sea Island Creole English
- gum - Guambiano
- gun - Guaraní, Mbyá
- guo - Guayabero
- gup - Gunwinggu
- guq - Aché
- gur - Farefare
- gus - Guinean Sign Language
- gut - Maléku Jaíka
- guu - Yanomamö
- guv - Gey
- guw - Gun
- gux - Gourmanchéma
- guz - Gusii
- gva - Guana
- gvc - Guanano
- gve - Duwet
- gvf - Golin
- gvj - Guajá
- gvl - Gulay
- gvm - Gurmana
- gvn - Kuku-Yalanji
- gvo - Gavião do Jiparaná
- gvp - Gavião, Pará
- gvr - Gurung, Western
- gvs - Gumawana
- gvy - Guyani
- gwa - Mbato
- gwb - Gwa
- gwc - Kalami
- gwd - Gawwada
- gwe - Gweno
- gwf - Gowro
- gwg - Moo
- gwi - Kutchin-Sprache
- gwj - |Gwi
- gwn - Gwandara
- gwr - Gwere
- gwt - Gawar-Bati
- gwu - Guwamu
- gww - Kwini
- gwx - Gua
- gxx - Wè Southern
- gya - Gbaya, Northwest
- gyb - Garus
- gyd - Kayardild
- gye - Gyem
- gyf - Gungabula
- gyg - Gbayi
- gyi - Gyele
- gyl - Gayil
- gym - Ngäbere
- gyn - Guyanese Creole English
- gyr - Guarayu
- gyy - Gunya
- gza - Ganza
- gzi - Gazi
- gzn - Gane
- haa - Han
- hab - Hanoi Sign Language
- hac - Gurani
- had - Hatam
- hae - Eastern Oromo
- haf - Haiphong Sign Language
- hag - Hanga
- hah - Hahon
- hai - Haida-Sprache
- haj - Hajong
- hak - Chinese, Hakka
- hal - Halang
- ham - Hewa
- han - Hangaza
- hao - Hakö
- hap - Hupla
- haq - Ha
- har - Harari
- has - Haisla
- hau - Haussa-Sprache
- hav - Havu
- haw - Hawaiisch
- hax - Haida, Southern
- hay - Haya
- haz - Hazaragi
- hba - Hamba
- hbb - Huba
- hbn - Heiban
- hbo - Hebrew, Ancient
- hbu - Habu
- hca - Andaman Creole Hindi
- hch - Huichol
- hdn - Haida, Northern
- hds - Honduras Sign Language
- hdy - Hadiyya
- hea - Hmong, Northern Qiandong
- heb - Hebräisch
- hed - Herdé
- heg - Helong
- heh - Hehe
- hei - Heiltsuk
- hem - Hemba
- her - Herero-Sprache
- hgm - Haiom
- hgw - Haigwai
- hhi - Hoia Hoia
- hhr - Kerak
- hhy - Hoyahoya
- hia - Lamang
- hib - Hibito
- hid - Hidatsa
- hif - Hindustani, Fijian
- hig - Kamwe
- hih - Pamosu
- hii - Hinduri
- hij - Hijuk
- hik - Seit-Kaitetu
- hil - Hiligaynon-Sprache
- hin - Hindi
- hio - Tsoa
- hir - Himarimã
- hit - Hethitisch
- hiw - Hiw
- hix - Hixkaryána
- hji - Haji
- hka - Kahe
- hke - Hunde
- hkk - Hunjara-Kaina Ke
- hks - Hong Kong Sign Language
- hla - Halia
- hlb - Halbi
- hld - Halang Doan
- hle - Hlersu
- hlt - Nga La
- hlu - Hieroglyphic Luwian
- hma - Hmong, Southern Mashan
- hmb - Humburi Senni Songhay
- hmc - Hmong, Central Huishui
- hmd - Hmong, Northeastern Dian
- hme - Hmong, Eastern Huishui
- hmf - Hmong Don
- hmg - Hmong, Southwestern Guiyang
- hmh - Hmong, Southwestern Huishui
- hmi - Hmong, Northern Huishui
- hmj - Hmong, Chonganjiang
- hmk - Maek
- hml - Hmong, Luopohe
- hmm - Hmong, Central Mashan
- hmn - Miao-Sprachen
- hmo - Hiri-Motu
- hmp - Hmong, Northern Mashan
- hmq - Hmong, Eastern Qiandong
- hmr - Hmar
- hms - Hmong, Southern Qiandong
- hmt - Hamtai
- hmu - Hamap
- hmv - Hmong Dô
- hmw - Hmong, Western Mashan
- hmy - Hmong, Southern Guiyang
- hmz - Hmong Shua
- hna - Mina
- hnd - Hindko, Southern
- hne - Chhattisgarhi
- hnh - ||Ani
- hni - Hani
- hnj - Hmong Njua
- hnn - Hanunoo
- hno - Hindko, Northern
- hns - Hindustani, Caribbean
- hnu - Hung
- hoa - Hoava
- hob - Mari
- hoc - Ho
- hod - Holma
- hoe - Horom
- hoh - Hobyót
- hoi - Holikachuk
- hoj - Harauti
- hol - Holu
- hom - Homa
- hoo - Holoholo
- hop - Hopi
- hor - Horo
- hos - Ho Chi Minh City Sign Language
- hot - Hote
- hov - Hovongan
- how - Honi
- hoy - Holiya
- hoz - Hozo
- hpo - Hpon
- hps - Hawai'i Pidgin Sign Language
- hra - Hrangkhol
- hre - Hre
- hrk - Haruku
- hrm - Horned Miao
- hro - Haroi
- hrr - Horuru
- hrt - Hértevin
- hru - Hruso
- hrv - Kroatisch
- hrx - Hunsrik
- hrz - Harzani
- hsb - Obersorbisch
- hsf - Huastec, Southeastern
- hsh - Hungarian Sign Language
- hsl - Hausa Sign Language
- hsn - Chinese, Xiang
- hss - Harsusi
- hti - Hoti
- hto - Huitoto, Minica
- hts - Hadza
- htu - Hitu
- htx - Middle Hittite
- hub - Huambisa
- huc - |Hua
- hud - Huaulu
- hue - Huave, San Francisco del Mar
- huf - Humene
- hug - Huachipaeri
- huh - Huilliche
- hui - Huli
- huj - Hmong, Northern Guiyang
- huk - Hulung
- hul - Hula
- hum - Hungana
- hun - Ungarisch
- huo - Hu
- hup - Hupa-Sprache
- huq - Tsat
- hur - Halkomelem
- hus - Huastec, Veracruz
- hut - Humla
- huu - Huitoto, Murui
- huv - Huave, San Mateo del Mar
- huw - Hukumina
- hux - Huitoto, Nüpode
- huy - Hulaulá
- huz - Hunzib
- hva - Huastec, San Luís Potosí
- hvc - Haitian Vodoun Culture Language
- hve - Huave, San Dionisio del Mar
- hvk - Haveke
- hvn - Sabu
- hvv - Huave, Santa María del Mar
- hwa - Wané
- hwc - Hawaii Creole English
- hwo - Hwana
- hya - Hya
- hye - Armenisch
- iai - Iaai
- ian - Iatmul
- iap - Iapama
- iar - Purari
- iba - Iban-Sprache
- ibb - Ibibio
- ibd - Iwaidja
- ibe - Akpes
- ibg - Ibanag
- ibi - Ibilo
- ibl - Ibaloi
- ibm - Agoi
- ibn - Ibino
- ibo - Ibo-Sprache
- ibr - Ibuoro
- ibu - Ibu
- iby - Ibani
- ica - Ede Ica
- ich - Etkywan
- icl - Icelandic Sign Language
- icr - Islander Creole English
- ida - Idakho-Isukha-Tiriki
- idb - Indo-Portuguese
- idc - Idon
- idd - Ede Idaca
- ide - Idere
- idi - Idi
- ido - Ido
- idr - Indri
- ids - Idesa
- idt - Idaté
- idu - Idoma
- ifa - Ifugao, Amganad
- ifb - Ifugao, Batad
- ife - Ifè
- iff - Ifo
- ifk - Ifugao, Tuwali
- ifm - Teke-Fuumu
- ifu - Ifugao, Mayoyao
- ify - Kallahan, Keley-I
- igb - Ebira
- ige - Igede
- igg - Igana
- igl - Igala
- igm - Kanggape
- ign - Ignaciano
- igo - Isebe
- igs - Interglossa
- igw - Igwe
- ihb - Iha Based Pidgin
- ihi - Ihievbe
- ihp - Iha
- iii - Lalo-Sprache
- ijc - Izon
- ije - Biseni
- ijj - Ede Ije
- ijn - Kalabari
- ijs - Ijo, Southeast
- ike - Inuktitut, Eastern Canadian
- iki - Iko
- ikk - Ika
- ikl - Ikulu
- iko - Olulumo-Ikom
- ikp - Ikpeshi
- ikt - Inuktitut, Western Canadian
- iku - Inuktitut
- ikv - Iku-Gora-Ankwa
- ikw - Ikwere
- ikx - Ik
- ikz - Ikizu
- ila - Ile Ape
- ilb - Ila
- ile - Interlingue
- ilg - Garig-Ilgar
- ili - Ili Turki
- ilk - Ilongot
- ill - Iranun
- ilo - Ilokano-Sprache
- ils - International Sign
- ilu - Iliuun
- ilv - Ilue
- ilw - Talur
- ima - Mala Malasar
- ime - Imeraguen
- imi - Anamgura
- iml - Miluk
- imn - Imonda
- imo - Imbongu
- imr - Imroing
- ims - Marsian
- imy - Milyan
- ina - Interlingua
- inb - Inga
- ing - Degexitan
- inh - Inguschisch
- inj - Inga, Jungle
- inl - Indonesian Sign Language
- inm - Minaean
- inn - Isinai
- ino - Inoke-Yate
- inp - Iñapari
- ins - Indian Sign Language
- int - Intha
- inz - Ineseño
- ior - Inor
- iou - Tuma-Irumu
- iow - Iowa-Oto
- ipi - Ipili
- ipk - Inupik
- ipo - Ipiko
- iqu - Iquito
- ire - Iresim
- irh - Irarutu
- iri - Irigwe
- irk - Iraqw
- irn - Irántxe
- irr - Ir
- iru - Irula
- irx - Kamberau
- iry - Iraya
- isa - Isabi
- isc - Isconahua
- isd - Isnag
- ise - Italian Sign Language
- isg - Irish Sign Language
- ish - Esan
- isi - Nkem-Nkum
- isl - Isländisch
- ism - Masimasi
- isn - Isanzu
- iso - Isoko
- isr - Israeli Sign Language
- ist - Istriot
- isu - Isu
- ita - Italienisch
- itb - Itneg, Binongan
- ite - Itene
- iti - Itneg, Inlaod
- itk - Judeo-Italian
- itl - Itelmen
- itm - Itu Mbon Uzo
- ito - Itonama
- itr - Iteri
- its - Isekiri
- itt - Itneg, Maeng
- itu - Itutang
- itv - Itawit
- itw - Ito
- itx - Itik
- ity - Moyadan Itneg
- itz - Itza
- ium - Iu Mien
- ivb - Ibatan
- ivv - Ivatan
- iwk - I-Wak
- iwm - Iwam
- iwo - Iwur
- iws - Iwam, Sepik
- ixc - Ixcatec
- ixi - Ixil, Nebaj
- ixj - Ixil, Chajul
- ixl - Ixil, San Juan Cotzal
- iya - Iyayu
- iyo - Mesaka
- iyx - Yaka (Congo)
- izh - Ingrian
- izi - Izi-Ezaa-Ikwo-Mgbo
- izr - Izere
- jaa - Jamamadí
- jab - Hyam
- jac - Jakalteko, Eastern
- jad - Jahanka
- jae - Yabem
- jaf - Jara
- jah - Jah Hut
- jai - Jakalteko, Western
- jaj - Zazao
- jak - Jakun
- jal - Yalahatan
- jam - Jamaican Creole English
- jao - Yanyuwa
- jap - Jaruára
- jaq - Yaqay
- jar - Jarawa
- jas - Javanese, New Caledonian
- jat - Jakati
- jau - Yaur
- jav - Javanisch
- jax - Malay, Jambi
- jay - Jarnango
- jaz - Jawe
- jbe - Judeo-Berber
- jbj - Arandai
- jbn - Nafusi
- jbo - Lojban
- jbr - Jofotek-Bromnya
- jbt - Jabutí
- jbu - Jukun Takum
- jcs - Jamaican Country Sign Language
- jct - Judeo-Crimean Tatar
- jda - Jad
- jdg - Jadgali
- jdt - Judeo-Tat
- jeb - Jebero
- jee - Jerung
- jeg - Jeng
- jeh - Jeh
- jei - Yei
- jek - Jeri Kuo
- jel - Yelmek
- jen - Dza
- jer - Jere
- jet - Manem
- jeu - Jonkor Bourmataguil
- jgb - Ngbee
- jge - Judeo-Georgian
- jgo - Ngomba
- jhi - Jehai
- jhs - Jhankot Sign Language
- jia - Jina
- jib - Jibu
- jic - Tol
- jid - Bu
- jie - Jilbe
- jig - Djingili
- jih - Shangzhai
- jii - Jiiddu
- jil - Jilim
- jim - Jimi
- jio - Jiamao
- jiq - Guanyinqiao
- jit - Jita
- jiu - Jinuo, Youle
- jiv - Shuar
- jiy - Jinuo, Buyuan
- jko - Kubo
- jku - Labir
- jle - Ngile
- jma - Dima
- jmb - Zumbun
- jmc - Machame
- jmd - Yamdena
- jmi - Jimi
- jmk - Jamtska
- jml - Jumli
- jmn - Makuri Naga
- jmr - Kamara
- jms - Mashi
- jmx - Mixtec, Western Juxtlahuaca
- jna - Jangshung
- jnd - Jandavra
- jng - Yangman
- jni - Janji
- jnj - Yemsa
- jnl - Rawat
- jns - Jaunsari
- job - Joba
- jod - Wojenaka
- jor - Jorá
- jos - Jordanian Sign Language
- jow - Jowulu
- jpa - Jewish Palestinian Aramaic
- jpn - Japanisch
- jpr - Jüdisch-Persisch
- jqr - Jaqaru
- jra - Jarai
- jrb - Jüdisch-Arabisch
- jrr - Jiru
- jrt - Jorto
- jru - Japrería
- jsl - Japanese Sign Language
- jua - Júma
- jub - Wannu
- juc - Jurchen
- jud - Worodougou
- juh - Hõne
- juk - Wapan
- jul - Jirel
- jum - Jumjum
- jun - Juang
- juo - Jiba
- jup - Hupdë
- jur - Jurúna
- jus - Jumla Sign Language
- jut - Jutish
- juu - Ju
- juw - Wãpha
- juy - Juray
- jvd - Javindo
- jvn - Javanese, Caribbean
- jwi - Jwira-Pepesa
- jya - Jiarong
- jye - Arabic, Judeo-Yemeni
- jyy - Jaya
- kaa - Karakalpakisch
- kab - Kabylisch
- kac - Kachin-Sprache
- kad - Kadara
- kae - Ketangalan
- kaf - Katso
- kag - Kajaman
- kah - Kara
- kai - Karekare
- kaj - Jju
- kak - Kallahan, Kayapa
- kal - Grönländisch
- kam - Kamba-Sprache
- kan - Kannada
- kao - Xaasongaxango
- kap - Bezhta
- kaq - Capanahua
- kas - Kaschmiri
- kat - Georgisch
- kau - Kanuri-Sprache
- kav - Katukína
- kaw - Kawi
- kax - Kao
- kay - Kamayurá
- kaz - Kasachisch
- kba - Kalarko
- kbb - Kaxuiâna
- kbc - Kadiwéu
- kbd - Kabardinisch
- kbe - Kanju
- kbf - Kakauhua
- kbg - Khamba
- kbh - Camsá
- kbi - Kaptiau
- kbj - Kari
- kbk - Koiari, Grass
- kbl - Kanembu
- kbm - Iwal
- kbn - Kare
- kbo - Keliko
- kbp - Kabiyé
- kbq - Kamano
- kbr - Kafa
- kbs - Kande
- kbt - Abadi
- kbu - Kabutra
- kbv - Dera
- kbw - Kaiep
- kbx - Ap Ma
- kby - Kanuri, Manga
- kbz - Duhwa
- kca - Khanty
- kcb - Kawacha
- kcc - Lubila
- kcd - Kanum, Ngkâlmpw
- kce - Kaivi
- kcf - Ukaan
- kcg - Tyap
- kch - Vono
- kci - Kamantan
- kcj - Kobiana
- kck - Kalanga
- kcl - Kela
- kcm - Gula
- kcn - Nubi
- kco - Kinalakna
- kcp - Kanga
- kcq - Kamo
- kcr - Katla
- kcs - Koenoem
- kct - Kaian
- kcu - Kami
- kcv - Kete
- kcw - Kabwari
- kcx - Kachama-Ganjule
- kcy - Korandje
- kcz - Konongo
- kda - Worimi
- kdc - Kutu
- kdd - Yankunytjatjara
- kde - Makonde
- kdf - Mamusi
- kdg - Seba
- kdh - Tem
- kdi - Kumam
- kdj - Karamojong
- kdk - Numee
- kdl - Tsikimba
- kdm - Kagoma
- kdn - Kunda
- kdp - Kaningdon-Nindem
- kdq - Koch
- kdr - Karaim
- kds - Lahu Shi
- kdt - Kuy
- kdu - Kadaru
- kdv - Kado
- kdw - Koneraw
- kdx - Kam
- kdy - Keder
- kdz - Kwaja
- kea - Kabuverdianu
- keb - Kélé
- kec - Keiga
- ked - Kerewe
- kee - Keres, Eastern
- kef - Kpessi
- keg - Tese
- keh - Keak
- kei - Kei
- kej - Kadar
- kek - Kekchí
- kel - Kela
- kem - Kemak
- ken - Kenyang
- keo - Kakwa
- kep - Kaikadi
- keq - Kamar
- ker - Kera
- kes - Kugbo
- ket - Ket
- keu - Akebu
- kev - Kanikkaran
- kew - Kewa, West
- kex - Kukna
- key - Kupia
- kez - Kukele
- kfa - Kodagu
- kfb - Kolami, Northwestern
- kfc - Konda-Dora
- kfd - Koraga, Korra
- kfe - Kota
- kff - Koya
- kfg - Kudiya
- kfh - Kurichiya
- kfi - Kurumba
- kfj - Kemiehua
- kfk - Kinnauri
- kfl - Kung
- kfm - Khunsari
- kfn - Kuk
- kfo - Koro
- kfp - Korwa
- kfq - Korku
- kfr - Kachchi
- kfs - Bilaspuri
- kft - Kanjari
- kfu - Katkari
- kfv - Kurmukar
- kfw - Kharam Naga
- kfx - Kullu Pahari
- kfy - Kumauni
- kfz - Koromfé
- kga - Koyaga
- kgb - Kawe
- kgc - Kasseng
- kgd - Kataang
- kge - Komering
- kgf - Kube
- kgg - Kusunda
- kgh - Kalinga, Upper Tanudan
- kgi - Selangor Sign Language
- kgj - Kham, Gamale
- kgk - Kaiwá
- kgl - Kunggari
- kgm - Karipúna
- kgn - Karingani
- kgo - Krongo
- kgp - Kaingáng
- kgq - Kamoro
- kgr - Abun
- kgs - Kumbainggar
- kgt - Somyev
- kgu - Kobol
- kgv - Karas
- kgw - Karon Dori
- kgx - Kamaru
- kgy - Kyerung
- kha - Khasi-Sprache
- khb - Lü
- khc - Tukang Besi North
- khd - Kanum, Bädi
- khe - Korowai
- khf - Khuen
- khg - Khams Tibetan
- khh - Kehu
- khj - Kuturmi
- khk - Mongolian, Halh
- khl - Lusi
- khm - Kambodschanisch
- khn - Khandesi
- kho - Sakisch
- khp - Kapori
- khq - Koyra Chiini Songhay
- khr - Kharia
- khs - Kasua
- kht - Khamti
- khu - Nkhumbi
- khv - Khvarshi
- khw - Khowar
- khx - Kanu
- khy - Kele
- khz - Keapara
- kia - Kim
- kib - Koalib
- kic - Kickapoo
- kid - Koshin
- kie - Kibet
- kif - Eastern Parbate Kham
- kig - Kimaama
- kih - Kilmeri
- kii - Kitsai
- kij - Kilivila
- kik - Kikuyu-Sprache
- kil - Kariya
- kim - Karagas
- kin - Rwanda-Sprache
- kio - Kiowa
- kip - Kham, Sheshi
- kiq - Kosadle
- kir - Kirgisisch
- kis - Kis
- kit - Agob
- kiu - Kirmanjki
- kiv - Kimbu
- kiw - Kiwai, Northeast
- kix - Khiamniungan Naga
- kiy - Kirikiri
- kiz - Kisi
- kja - Mlap
- kjb - Q'anjob'al
- kjc - Konjo, Coastal
- kjd - Kiwai, Southern
- kje - Kisar
- kjf - Khalaj
- kjg - Khmu
- kjh - Khakas
- kji - Zabana
- kjj - Khinalugh
- kjk - Konjo, Highland
- kjl - Western Parbate Kham
- kjm - Kháng
- kjn - Kunjen
- kjo - Kinnauri, Harijan
- kjp - Karen, Pwo Eastern
- kjq - Keres, Western
- kjr - Kurudu
- kjs - Kewa, East
- kjt - Karen, Phrae Pwo
- kju - Kashaya
- kjx - Ramopa
- kjy - Erave
- kjz - Bumthangkha
- kka - Kakanda
- kkb - Kwerisa
- kkc - Odoodee
- kkd - Kinuku
- kke - Kakabe
- kkf - Kalaktang Monpa
- kkg - Kalinga, Mabaka Valley
- kkh - Khün
- kki - Kagulu
- kkj - Kako
- kkk - Kokota
- kkl - Kosarek Yale
- kkm - Kiong
- kkn - Kon Keu
- kko - Karko
- kkp - Gugubera
- kkq - Kaiku
- kkr - Kir-Balar
- kks - Giiwo
- kkt - Koi
- kku - Tumi
- kkv - Kangean
- kkw - Teke-Kukuya
- kkx - Kohin
- kky - Guguyimidjir
- kkz - Kaska
- kla - Klamath-Modoc
- klb - Kiliwa
- klc - Kolbila
- kld - Gamilaraay
- kle - Kulung
- klf - Kendeje
- klg - Kalagan, Tagakaulu
- klh - Weliki
- kli - Kalumpang
- klj - Khalaj, Turkic
- klk - Kono
- kll - Kalagan, Kagan
- klm - Kolom
- kln - Kalenjin
- klo - Kapya
- klp - Kamasa
- klq - Rumu
- klr - Khaling
- kls - Kalasha
- klt - Nukna
- klu - Klao
- klv - Maskelynes
- klw - Lindu
- klx - Koluwawa
- kly - Kalao
- klz - Kabola
- kma - Konni
- kmb - Kimbundu-Sprache
- kmc - Dong, Southern
- kmd - Kalinga, Madukayang
- kme - Bakole
- kmf - Kare
- kmg - Kâte
- kmh - Kalam
- kmi - Kami
- kmj - Kumarbhag Paharia
- kmk - Kalinga, Limos
- kml - Kalinga, Lower Tanudan
- kmm - Kom
- kmn - Awtuw
- kmo - Kwoma
- kmp - Gimme
- kmq - Kwama
- kmr - Kurdish, Northern
- kms - Kamasau
- kmt - Kemtuik
- kmu - Kanite
- kmv - Karipúna Creole French
- kmw - Komo
- kmx - Waboda
- kmy - Koma
- kmz - Khorasani Turkish
- kna - Dera
- knb - Kalinga, Lubuagan
- knc - Kanuri, Central
- knd - Konda
- kne - Kankanaey
- knf - Mankanya
- kng - Koongo
- knh - Kenyah, Kayan River
- kni - Kanufi
- knj - Akateko
- knk - Kuranko
- knl - Keninjal
- knm - Kanamarí
- knn - Konkani
- kno - Kono
- knp - Kwanja
- knq - Kintaq
- knr - Kaningra
- kns - Kensiu
- knt - Katukína, Panoan
- knu - Kono (Guinea)
- knv - Tabo
- knw - Kung-Ekoka
- knx - Kendayan
- kny - Kanyok
- knz - Kalamsé
- koa - Konomala
- kob - Kohoroxitari
- koc - Kpati
- kod - Kodi
- koe - Kacipo-Balesi
- kof - Kubi
- kog - Cogui
- koh - Koyo
- koi - Komi-Permyak
- koj - Sara Dunjo
- kok - Konkani
- kol - Kol
- kom - Komi-Sprache
- kon - Kongo-Sprache
- koo - Konjo
- kop - Kwato
- koq - Kota
- kor - Koreanisch
- kos - Kosraeanisch
- kot - Lagwan
- kou - Koke
- kov - Kudu-Camo
- kow - Kugama
- kox - Coxima
- koy - Koyukon
- koz - Korak
- kpa - Kutto
- kpb - Kurumba, Mullu
- kpc - Curripaco
- kpd - Koba
- kpe - Kpelle-Sprache
- kpf - Komba
- kpg - Kapingamarangi
- kph - Kplang
- kpi - Kofei
- kpj - Karajá
- kpk - Kpan
- kpl - Kpala
- kpm - Koho
- kpn - Kepkiriwát
- kpo - Ikposo
- kpp - Karen, Paku
- kpq - Korupun-Sela
- kpr - Korafe
- kps - Tehit
- kpt - Karata
- kpu - Kafoa
- kpv - Komi-Zyrian
- kpw - Kobon
- kpx - Koiali, Mountain
- kpy - Koryak
- kpz - Kupsabiny
- kqa - Mum
- kqb - Kovai
- kqc - Doromu
- kqd - Koy Sanjaq Surat
- kqe - Kalagan
- kqf - Kakabai
- kqg - Khe
- kqh - Kisankasa
- kqi - Koitabu
- kqj - Koromira
- kqk - Gbe, Kotafon
- kql - Kyenele
- kqm - Khisa
- kqn - Kaonde
- kqo - Krahn, Eastern
- kqp - Kimré
- kqq - Krenak
- kqr - Kimaragang
- kqs - Kissi, Northern
- kqt - Kadazan, Klias River
- kqu - Seroa
- kqv - Okolod
- kqw - Kandas
- kqx - Mser
- kqy - Koorete
- kqz - Korana
- kra - Kumhali
- krb - Karkin
- krc - Karatschaiisch-Balkarisch
- krd - Kairui-Midiki
- kre - Kreen-Akarore
- krf - Koro
- krg - Korowai, North
- krh - Kurama
- kri - Krio
- krj - Kinaray-A
- krk - Kerek
- krl - Karelisch
- krm - Krim
- krn - Sapo
- krp - Korop
- krq - Krui
- krr - Krung 2
- krs - Gbaya
- krt - Kanuri, Tumari
- kru - Oraon-Sprache
- krv - Kravet
- krw - Krahn, Western
- krx - Karon
- kry - Kryts
- krz - Kanum, Sota
- ksa - Shuwa-Zamani
- ksb - Shambala
- ksc - Kalinga, Southern
- ksd - Kuanua
- kse - Kuni
- ksf - Bafia
- ksg - Kusaghe
- ksh - Kölsch
- ksi - Krisa
- ksj - Uare
- ksk - Kansa
- ksl - Kumalu
- ksm - Kumba
- ksn - Kasiguranin
- kso - Kofa
- ksp - Kaba
- ksq - Kwaami
- ksr - Borong
- kss - Kisi, Southern
- kst - Winyé
- ksu - Khamyang
- ksv - Kusu
- ksw - Karen, Sgaw
- ksx - Kedang
- ksy - Kharia Thar
- ksz - Koraku
- kta - Katua
- ktb - Kambaata
- ktc - Kholok
- ktd - Kokata
- kte - Nubri
- ktf - Kwami
- ktg - Kalkutung
- kth - Karanga
- kti - North Muyu
- ktj - Krumen, Plapo
- ktk - Kaniet
- ktl - Koroshi
- ktm - Kurti
- ktn - Karitiâna
- kto - Kuot
- ktp - Kaduo
- ktq - Katabaga
- ktr - Kota Marudu Tinagas
- kts - South Muyu
- ktt - Ketum
- ktu - Kituba
- ktv - Katu, Eastern
- ktw - Kato
- ktx - Kaxararí
- kty - Kango
- ktz - Juhoan
- kua - Kwanyama-Sprache
- kub - Kutep
- kuc - Kwinsu
- kud - Auhelawa
- kue - Kuman
- kuf - Katu, Western
- kug - Kupa
- kuh - Kushi
- kui - Kuikúro-Kalapálo
- kuj - Kuria
- kuk - Kepo
- kul - Kulere
- kum - Kumükisch
- kun - Kunama
- kuo - Kumukio
- kup - Kunimaipa
- kuq - Karipuná
- kur - Kurdisch
- kus - Kusaal
- kut - Kutenai-Sprache
- kuu - Kuskokwim, Upper
- kuv - Kur
- kuw - Kpagua
- kux - Kukatja
- kuy - Kuuku-Yau
- kuz - Kunza
- kva - Bagvalal
- kvb - Kubu
- kvc - Kove
- kvd - Kui
- kve - Kalabakan
- kvf - Kabalai
- kvg - Kuni-Boazi
- kvh - Komodo
- kvi - Kwang
- kvj - Psikye
- kvk - Korean Sign Language
- kvl - Karen, Brek
- kvm - Kendem
- kvn - Kuna, Border
- kvo - Dobel
- kvp - Kompane
- kvq - Karen, Geba
- kvr - Kerinci
- kvs - Kunggara
- kvt - Karen, Lahta
- kvu - Karen, Yinbaw
- kvv - Kola
- kvw - Wersing
- kvx - Koli, Parkari
- kvy - Karen, Yintale
- kvz - Tsakwambo
- kwa - Dâw
- kwb - Kwa
- kwc - Likwala
- kwd - Kwaio
- kwe - Kwerba
- kwf - Kwaraae
- kwg - Kaba Deme
- kwh - Kowiai
- kwi - Awa-Cuaiquer
- kwj - Kwanga
- kwk - Kwakiutl
- kwl - Kofyar
- kwm - Kwambi
- kwn - Kwangali
- kwo - Kwomtari
- kwp - Kodia
- kwq - Kwak
- kwr - Kwer
- kws - Kwese
- kwt - Kwesten
- kwu - Kwakum
- kwv - Kaba Na
- kww - Kwinti
- kwx - Khirwar
- kwy - Kongo, San Salvador
- kwz - Kwadi
- kxa - Kairiru
- kxb - Krobu
- kxc - Komso
- kxd - Brunei
- kxe - Kakihum
- kxf - Karen, Manumanaw
- kxg - Katingan
- kxh - Karo
- kxi - Keningau Murut
- kxj - Kulfa
- kxk - Karen, Zayein
- kxl - Kurux, Nepali
- kxm - Khmer, Northern
- kxn - Kanowit
- kxo - Kanoé
- kxp - Koli, Wadiyara
- kxq - Kanum, Smärky
- kxr - Koro
- kxs - Kangjia
- kxt - Koiwat
- kxu - Kui
- kxv - Kuvi
- kxw - Konai
- kxx - Likuba
- kxy - Kayong
- kxz - Kerewo
- kya - Kwaya
- kyb - Kalinga, Butbut
- kyc - Kyaka
- kyd - Karey
- kye - Krache
- kyf - Kouya
- kyg - Keyagana
- kyh - Karok
- kyi - Kiput
- kyj - Karao
- kyk - Kamayo
- kyl - Kalapuya
- kym - Kpatili
- kyn - Karolanos
- kyo - Kelon
- kyp - Kang
- kyq - Kenga
- kyr - Kuruáya
- kys - Kayan, Baram
- kyt - Kayagar
- kyu - Kayah, Western
- kyv - Kayort
- kyw - Kudmali
- kyx - Rapoisi
- kyy - Kambaira
- kyz - Kayabí
- kza - Karaboro, Western
- kzb - Kaibobo
- kzc - Kulango, Bondoukou
- kzd - Kadai
- kze - Kosena
- kzf - Kaili, Daa
- kzg - Kikai
- kzh - Kenuzi-Dongola
- kzi - Kelabit
- kzj - Kadazan, Coastal
- kzk - Kazukuru
- kzl - Kayeli
- kzm - Kais
- kzn - Kokola
- kzo - Kaningi
- kzp - Kaidipang
- kzq - Kaike
- kzr - Karang
- kzs - Dusun, Sugut
- kzt - Dusun, Tambunan
- kzu - Kayupulau
- kzv - Komyandaret
- kzw - Karirí-Xocó
- kzx - Kamarian
- kzy - Kango
- kzz - Kalabra
- laa - Lapuyan Subanun
- lab - Linear A
- lac - Lacandon
- lad - Judenspanisch
- lae - Pattani
- laf - Lafofa
- lag - Langi
- lah - Lahndā
- lai - Lambya
- laj - Lango
- lak - Laka
- lal - Lalia
- lan - Laru
- lao - Laotisch
- lap - Laka
- laq - Qabiao
- lar - Larteh
- las - Lama
- lat - Latein
- lau - Laba
- lav - Lettisch
- law - Lauje
- lax - Tiwa
- lay - Lama
- laz - Aribwatsa
- lba - Lui
- lbb - Label
- lbc - Lakkia
- lbe - Lak
- lbf - Tinani
- lbg - Laopang
- lbi - Labi
- lbj - Ladakhi
- lbm - Lodhi
- lbn - Lamet
- lbo - Laven
- lbq - Wampar
- lbr - Lorung, Northern
- lbs - Libyan Sign Language
- lbt - Lachi
- lbu - Labu
- lbv - Lavatbura-Lamusong
- lbw - Tolaki
- lbx - Lawangan
- lby - Lamu-Lamu
- lbz - Lardil
- lcc - Legenyem
- lcd - Lola
- lce - Loncong
- lcf - Lubu
- lch - Luchazi
- lcl - Lisela
- lcm - Tungag
- lcp - Lawa, Western
- lcq - Luhu
- lcs - Lisabata-Nuniali
- ldb - Idun
- ldd - Luri
- ldg - Lenyima
- ldh - Lamja-Dengsa-Tola
- ldi - Laari
- ldj - Lemoro
- ldk - Leelau
- ldl - Kaan
- ldm - Landoma
- ldn - Láadan
- ldo - Loo
- ldp - Tso
- ldq - Lufu
- lea - Lega-Shabunda
- leb - Lala-Bisa
- lec - Leco
- led - Lendu
- lee - Lyélé
- lef - Lelemi
- leg - Lengua
- leh - Lenje
- lei - Lemio
- lej - Lengola
- lek - Leipon
- lel - Lele
- lem - Nomaande
- len - Lenca
- leo - Leti
- lep - Lepcha
- leq - Lembena
- ler - Lenkau
- les - Lese
- let - Lesing-Gelimi
- leu - Kara
- lev - Lamma
- lew - Kaili, Ledo
- lex - Luang
- ley - Lemolang
- lez - Lesgisch
- lfa - Lefa
- lfn - Lingua Franca Nova
- lga - Lungga
- lgb - Laghu
- lgg - Lugbara
- lgh - Laghuu
- lgi - Lengilu
- lgk - Lingarak
- lgl - Wala
- lgm - Lega-Mwenga
- lgn - Opuuo
- lgq - Logba
- lgr - Lengo
- lgt - Pahi
- lgu - Longgu
- lgz - Ligenza
- lha - Laha
- lhh - Laha
- lhi - Lahu Shi
- lhl - Lohar, Lahul
- lhm - Lhomi
- lhn - Lahanan
- lhp - Lhokpu
- lhs - Mlahsö
- lht - Lo-Toga
- lhu - Lahu
- lia - Limba, West-Central
- lib - Likum
- lic - Hlai
- lid - Nyindrou
- lie - Likila
- lif - Limbu
- lig - Ligbi
- lih - Lihir
- lii - Lingkhim
- lij - Ligurian
- lik - Lika
- lil - Lillooet
- lim - Limburgisch
- lin - Lingala
- lio - Liki
- lip - Sekpele
- liq - Libido
- lir - Liberian English
- lis - Lisu
- lit - Litauisch
- liu - Logorik
- liv - Liv
- liw - Lembak
- lix - Liabuku
- liy - Banda-Bambari
- liz - Libinza
- lje - Rampi
- lji - Laiyolo
- ljl - Lio
- ljp - Lampung
- lka - Lakalei
- lkb - Kabras
- lkc - Kucong
- lkd - Lakondê
- lke - Kenyi
- lkh - Lakha
- lki - Laki
- lkj - Remun
- lkl - Laeko-Libuat
- lkn - Lakona
- lko - Khayo
- lkr - Päri
- lks - Kisa
- lkt - Lakota
- lky - Lokoya
- lla - Lala-Roba
- llb - Lolo
- llc - Lele
- lld - Ladin
- lle - Lele
- llf - Hermit
- llg - Lole
- llh - Lamu
- lli - Teke-Laali
- llk - Lelak
- lll - Lilau
- llm - Lasalimu
- lln - Lele
- llo - Khlor
- llp - Efate, North
- llq - Lolak
- lls - Lithuanian Sign Language
- llu - Lau
- llx - Lauan
- lma - Limba, East
- lmb - Merei
- lmc - Limilngan
- lmd - Lumun
- lme - Pévé
- lmf - Lembata, South
- lmg - Lamogai
- lmh - Lambichhong
- lmi - Lombi
- lmj - Lembata, West
- lmk - Lamkang
- lml - Hano
- lmm - Lamam
- lmn - Lambadi
- lmo - Lombard
- lmp - Limbum
- lmq - Lamatuka
- lmr - Lamalera
- lms - Limousin
- lmt - Lematang
- lmu - Lamenu
- lmv - Lomaiviti
- lmw - Miwok, Lake
- lmx - Laimbue
- lmy - Lamboya
- lmz - Lumbee
- lna - Langbashe
- lnb - Mbalanhu
- lnc - Languedocien
- lnd - Lundayeh
- lng - Langobardic
- lnh - Lanoh
- lni - Lantanai
- lnj - Leningitij
- lnl - Banda, South Central
- lnm - Langam
- lnn - Lorediakarkar
- lno - Lango
- lns - Lamnso
- lnt - Lintang
- lnu - Longuda
- lnz - Lonzo
- loa - Loloda
- lob - Lobi
- loc - Inonhan
- lod - Berawan
- loe - Saluan
- lof - Logol
- log - Logo
- loh - Narim
- loi - Loma
- loj - Lou
- lok - Loko
- lol - Mongo-Sprache
- lom - Loma
- lon - Malawi Lomwe
- loo - Lombo
- lop - Lopa
- loq - Lobala
- lor - Téén
- los - Loniu
- lot - Otuho
- lou - Louisiana Creole French
- lov - Lopi
- low - Lobu, Tampias
- lox - Loun
- loy - Lowa
- loz - Rotse-Sprache
- lpa - Lelepa
- lpe - Lepki
- lpn - Long Phuri Naga
- lpo - Lipo
- lpx - Lopit
- lra - Lara
- lrc - Northern Luri
- lre - Laurentian
- lrg - Laragia
- lri - Marachi
- lrk - Loarki
- lrl - Lari
- lrm - Marama
- lrn - Lorang
- lro - Laro
- lrr - Lorung, Southern
- lrt - Larantuka Malay
- lrv - Larevat
- lrz - Lemerig
- lsa - Lasgerdi
- lsd - Lishana Deni
- lse - Lusengo
- lsg - Lyons Sign Language
- lsh - Lish
- lsi - Lashi
- lsl - Latvian Sign Language
- lsm - Saamia
- lso - Laos Sign Language
- lsp - Panamanian Sign Language
- lsr - Aruop
- lss - Lasi
- lst - Trinidad and Tobago Sign Language
- ltc - Late Middle Chinese
- lti - Leti
- ltn - Latundê
- lto - Tsotso
- lts - Tachoni
- ltu - Latu
- ltz - Luxemburgisch
- lua - Lulua-Sprache
- lub - Luba-Katanga-Sprache
- luc - Aringa
- lud - Ludian
- lue - Luvale
- luf - Laua
- lug - Ganda-Sprache
- lui - Luiseño-Sprache
- luj - Luna
- luk - Lunanakha
- lul - Olu'bo
- lum - Luimbi
- lun - Lunda-Sprache
- luo - Luo-Sprache
- lup - Lumbu
- luq - Lucumi
- lur - Laura
- lus - Lushai-Sprache
- lut - Lushootseed
- luu - Lumba-Yakkha
- luv - Luwati
- luw - Luo
- luy - Luyia
- luz - Southern Luri
- lva - Makua
- lvk - Lavukaleve
- lvu - Levuka
- lwa - Lwalu
- lwe - Lewo Eleng
- lwg - Wanga
- lwh - Lachi, White
- lwl - Lawa, Eastern
- lwm - Laomian
- lwo - Luwo
- lwt - Lewotobi
- lww - Lewo
- lya - Layakha
- lyg - Lyngngam
- lyn - Luyana
- lzh - Literary Chinese
- lzl - Litzlitz
- lzn - Leinong Naga
- lzz - Laz
- maa - Mazatec, San Jerónimo Tecóatl
- mab - Mixtec, Yutanduchi
- mad - Maduresisch
- mae - Bo-Rukul
- maf - Mafa
- mag - Khotta
- mah - Marschallesisch
- mai - Maithili
- maj - Mazatec, Jalapa de Díaz
- mak - Makassarisch
- mal - Malayalam
- mam - Mam, Northern
- man - Malinke-Sprache
- maq - Mazatec, Chiquihuitlán
- mar - Marathi
- mas - Massai-Sprache
- mat - Matlatzinca, San Francisco
- mau - Mazatec, Huautla
- mav - Sateré-Mawé
- maw - Mampruli
- max - Malay, North Moluccan
- maz - Mazahua Central
- mba - Higaonon
- mbb - Manobo, Western Bukidnon
- mbc - Macushi
- mbd - Manobo, Dibabawon
- mbe - Molale
- mbf - Malay, Baba
- mbg - Nambikuára, Northern
- mbh - Mangseng
- mbi - Manobo, Ilianen
- mbj - Nadëb
- mbk - Malol
- mbl - Maxakalí
- mbm - Ombamba
- mbn - Macaguán
- mbo - Mbo
- mbp - Malayo
- mbq - Maisin
- mbr - Nukak Makú
- mbs - Manobo, Sarangani
- mbt - Manobo, Matigsalug
- mbu - Mbula-Bwazza
- mbv - Mbulungish
- mbw - Maring
- mbx - Mari
- mby - Memoni
- mbz - Mixtec, Amoltepec
- mca - Maca
- mcb - Machiguenga
- mcc - Bitur
- mcd - Sharanahua
- mce - Mixtec, Itundujia
- mcf - Matsés
- mcg - Mapoyo
- mch - Maquiritari
- mci - Mese
- mcj - Mvanip
- mck - Mbunda
- mcl - Macaguaje
- mcm - Malaccan Creole Portuguese
- mcn - Masana
- mco - Mixe, Coatlán
- mcp - Makaa
- mcq - Ese
- mcr - Menya
- mcs - Mambai
- mct - Mengisa
- mcu - Mambila, Cameroon
- mcv - Minanibai
- mcw - Mawa
- mcx - Mpiemo
- mcy - South Watut
- mcz - Mawan
- mda - Mada
- mdb - Morigi
- mdc - Male
- mdd - Mbum
- mde - Maba
- mdf - Mokscha-Sprache
- mdg - Massalat
- mdh - Maguindanao
- mdi - Mamvu
- mdj - Mangbetu
- mdk - Mangbutu
- mdl - Maltese Sign Language
- mdm - Mayogo
- mdn - Mbati
- mdo - Gbaya, Southwest
- mdp - Mbala
- mdq - Mbole
- mdr - Mandaresisch
- mds - Maria
- mdt - Mbere
- mdu - Mboko
- mdv - Santa Lucía Monteverde Mixtec
- mdw - Mbosi
- mdx - Dizi
- mdy - Male
- mdz - Suruí Do Pará
- mea - Menka
- meb - Ikobi-Mena
- mec - Mara
- med - Melpa
- mee - Mengen
- mef - Megam
- meg - Mea
- meh - Mixtec, Southwestern Tlaxiaco
- mei - Midob
- mej - Meyah
- mek - Mekeo
- mel - Melanau
- mem - Mangala
- men - Mende-Sprache
- meo - Malay, Kedah
- mep - Miriwung
- meq - Merey
- mer - Meru
- mes - Masmaje
- met - Mato
- meu - Motu
- mev - Mann
- mew - Maaka
- mey - Hassaniyya
- mez - Menominee
- mfa - Malay, Pattani
- mfb - Lom
- mfc - Mba
- mfd - Mendankwe-Nkwen
- mfe - Morisyen
- mff - Naki
- mfg - Mixifore
- mfh - Matal
- mfi - Wandala
- mfj - Mefele
- mfk - Mofu, North
- mfl - Putai
- mfm - Marghi South
- mfn - Mbembe, Cross River
- mfo - Mbe
- mfp - Makassar Malay
- mfq - Moba
- mfr - Marithiel
- mfs - Mexican Sign Language
- mft - Mokerang
- mfu - Mbwela
- mfv - Mandjak
- mfw - Mulaha
- mfx - Melo
- mfy - Mayo
- mfz - Mabaan
- mga - Mittelirisch
- mgb - Mararit
- mgc - Morokodo
- mgd - Moru
- mge - Mango
- mgf - Maklew
- mgg - Mpongmpong
- mgh - Makhuwa-Meetto
- mgi - Lijili
- mgj - Abureni
- mgk - Mawes
- mgl - Maleu-Kilenge
- mgm - Mambae
- mgn - Mbangi
- mgo - Meta
- mgp - Magar, Eastern
- mgq - Malila
- mgr - Mambwe-Lungu
- mgs - Manda
- mgt - Mongol
- mgu - Mailu
- mgv - Matengo
- mgw - Matumbi
- mgx - Omati
- mgy - Mbunga
- mgz - Mbugwe
- mha - Manda
- mhb - Mahongwe
- mhc - Mocho
- mhd - Mbugu
- mhe - Besisi
- mhf - Mamaa
- mhg - Margu
- mhh - Maskoy Pidgin
- mhi - Madi
- mhj - Mogholi
- mhk - Mungaka
- mhl - Mauwake
- mhm - Makhuwa-Moniga
- mhn - Mócheno
- mho - Mashi
- mhp - Balinese Malay
- mhq - Mandan
- mhr - Mari, Eastern
- mhs - Buru
- mht - Mandahuaca
- mhu - Digaro-Mishmi
- mhv - Arakanese
- mhw - Mbukushu
- mhx - Maru
- mhy - Maanyan
- mhz - Mor
- mia - Miami
- mib - Mixtec, Atatláhuca
- mic - Micmac-Sprache
- mid - Mandaic
- mie - Mixtec, Ocotepec
- mif - Mofu-Gudur
- mig - Mixtec, San Miguel el Grande
- mih - Mixtec, Chayuco
- mii - Mixtec, Chigmecatitlán
- mij - Abar
- mik - Mikasuki
- mil - Mixtec, Peñoles
- mim - Mixtec, Alacatlatzala
- min - Minangkabau-Sprache
- mio - Mixtec, Pinotepa Nacional
- mip - Mixtec, Apasco-Apoala
- miq - Mískito
- mir - Mixe, Isthmus
- mit - Mixtec, Southern Puebla
- miu - Mixtec, Cacaloxtepec
- miv - Mimi
- miw - Akoye
- mix - Mixtec, Mixtepec
- miy - Mixtec, Ayutla
- miz - Mixtec, Coatzospan
- mja - Mahei
- mjc - Mixtec, San Juan Colorado
- mjd - Maidu, Northwest
- mje - Muskum
- mjg - Tu
- mjh - Mwera (Nyasa)
- mji - Kim Mun
- mjj - Mawak
- mjk - Matukar
- mjl - Mandeali
- mjm - Medebur
- mjn - Ma
- mjo - Malankuravan
- mjp - Malapandaram
- mjq - Malaryan
- mjr - Malavedan
- mjs - Miship
- mjt - Sauria Paharia
- mju - Manna-Dora
- mjv - Mannan
- mjw - Karbi
- mjx - Mahali
- mjy - Mahican
- mjz - Majhi
- mka - Mbre
- mkb - Mal Paharia
- mkc - Siliput
- mkd - Mazedonisch
- mke - Mawchi
- mkf - Miya
- mkg - Mak
- mki - Dhatki
- mkj - Mokilese
- mkk - Byep
- mkl - Mokole
- mkm - Moklen
- mkn - Malay, Kupang
- mko - Mingang Doso
- mkp - Moikodi
- mkq - Miwok, Bay
- mkr - Malas
- mks - Mixtec, Silacayoapan
- mkt - Vamale
- mku - Maninka, Konyanka
- mkv - Mafea
- mkw - Kituba
- mkx - Manobo, Cinamiguin
- mky - Makian, East
- mkz - Makasae
- mla - Malo
- mlb - Mbule
- mlc - Cao Lan
- mld - Malakhel
- mle - Manambu
- mlf - Mal
- mlg - Malagassi-Sprache
- mlh - Mape
- mli - Malimpung
- mlj - Miltu
- mlk - Malakote
- mll - Malua Bay
- mlm - Mulam
- mln - Malango
- mlo - Mlomp
- mlp - Bargam
- mlq - Maninkakan, Western
- mlr - Vame
- mls - Masalit
- mlt - Maltesisch
- mlu - To'abaita
- mlv - Motlav
- mlw - Moloko
- mlx - Malfaxal
- mly - Malay
- mlz - Malaynon
- mma - Mama
- mmb - Momina
- mmc - Mazahua, Michoacán
- mmd - Maonan
- mme - Mae
- mmf - Mundat
- mmg - Ambrym, North
- mmh - Mehináku
- mmi - Musar
- mmj - Majhwar
- mmk - Mukha-Dora
- mml - Man Met
- mmm - Maii
- mmn - Mamanwa
- mmo - Buang, Mangga
- mmp - Musan
- mmq - Musak
- mmr - Hmong, Western Xiangxi
- mms - Mam, Southern
- mmt - Malalamai
- mmu - Mmaala
- mmv - Miriti
- mmw - Emae
- mmx - Madak
- mmy - Migaama
- mmz - Mabaale
- mna - Mbula
- mnb - Muna
- mnc - Mandschurisch
- mnd - Mondé
- mne - Naba
- mnf - Mundani
- mng - Mnong, Eastern
- mnh - Mono
- mni - Meithei-Sprache
- mnj - Munji
- mnk - Mandinka
- mnl - Tiale
- mnm - Mapena
- mnn - Mnong, Southern
- mnp - Chinese, Min Bei
- mnq - Minriq
- mnr - Mono
- mns - Mansi
- mnt - Maykulan
- mnu - Mer
- mnv - Rennell-Bellona
- mnw - Mon
- mnx - Manikion
- mny - Manyawa
- mnz - Moni
- moa - Mwan
- mob - Moinba
- moc - Mocoví
- mod - Mobilian
- moe - Montagnais
- mof - Mohegan-Montauk-Narragansett
- mog - Mongondow
- moh - Mohawk-Sprache
- moi - Mboi
- moj - Monzombo
- mok - Morori
- mom - Monimbo
- mon - Mongolisch
- moo - Monom
- mop - Maya, Mopán
- moq - Mor
- mor - Moro
- mos - Mossi-Sprache
- mot - Barí
- mou - Mogum
- mov - Mohave
- mow - Moi
- mox - Molima
- moy - Shekkacho
- moz - Mukulu
- mpa - Mpoto
- mpb - Mullukmulluk
- mpc - Mangarayi
- mpd - Machinere
- mpe - Majang
- mpf - Mam, Tajumulco
- mpg - Marba
- mph - Maung
- mpi - Mpade
- mpj - Martu Wangka
- mpk - Mbara
- mpl - Middle Watut
- mpm - Mixtec, Yosondúa
- mpn - Mindiri
- mpo - Miu
- mpp - Migabac
- mpq - Matís
- mpr - Vangunu
- mps - Dadibi
- mpt - Mian
- mpu - Makuráp
- mpv - Munkip
- mpw - Mapidian
- mpx - Misima-Paneati
- mpy - Mapia
- mpz - Mpi
- mqa - Maba
- mqb - Mbuko
- mqc - Mangole
- mqd - Madang
- mqe - Matepi
- mqf - Momuna
- mqg - Malay, Kota Bangun Kutai
- mqh - Tlazoyaltepec Mixtec
- mqi - Mariri
- mqj - Mamasa
- mqk - Manobo, Rajah Kabunsuwan
- mql - Mbelime
- mqm - Marquesan, South
- mqn - Moronene
- mqo - Modole
- mqp - Manipa
- mqq - Minokok
- mqr - Mander
- mqs - Makian, West
- mqt - Mok
- mqu - Mandari
- mqv - Mosimo
- mqw - Murupi
- mqx - Mamuju
- mqy - Manggarai
- mqz - Malasanga
- mra - Mlabri
- mrb - Marino
- mrc - Maricopa
- mrd - Magar, Western
- mre - Martha's Vineyard Sign Language
- mrf - Elseng
- mrg - Miri
- mrh - Chin, Mara
- mri - Maori
- mrj - Mari, Western
- mrk - Hmwaveke
- mrl - Mortlockese
- mrm - Merlav
- mrn - Cheke Holo
- mro - Mru
- mrp - Morouas
- mrq - Marquesan, North
- mrr - Maria
- mrs - Maragus
- mrt - Marghi Central
- mru - Mono
- mrv - Mangareva
- mrw - Maranao
- mrx - Maremgi
- mry - Mandaya, Karaga
- mrz - Marind
- msa - Malaiisch
- msb - Masbatenyo
- msc - Maninka, Sankaran
- msd - Yucatec Maya Sign Language
- mse - Musey
- msf - Mekwei
- msg - Moraid
- msh - Masikoro Malagasy
- msi - Sabah Malay
- msj - Ma
- msk - Mansaka
- msl - Molof
- msm - Manobo, Agusan
- msn - Mosina
- mso - Mombum
- msp - Maritsauá
- msq - Caac
- msr - Mongolian Sign Language
- mss - Masela, West
- mst - Mandaya, Cataelano
- msu - Musom
- msv - Maslam
- msw - Mansoanka
- msx - Moresada
- msy - Aruamu
- msz - Momare
- mta - Manobo, Cotabato
- mtb - Anyin Morofo
- mtc - Munit
- mtd - Mualang
- mte - Mono
- mtf - Murik
- mtg - Una
- mth - Munggui
- mti - Maiwa
- mtj - Moskona
- mtk - Mbe
- mtl - Montol
- mtm - Mator
- mtn - Matagalpa
- mto - Mixe, Totontepec
- mtp - Wichí Lhamtés Nocten
- mtq - Muong
- mtr - Mewari
- mts - Yora
- mtt - Mota
- mtu - Mixtec, Tututepec
- mtv - Asaroo
- mtw - Magahat
- mtx - Mixtec, Tidaá
- mty - Nabi
- mua - Mundang
- mub - Mubi
- muc - Mbu'
- mud - Aleut, Mednyj
- mue - Media Lengua
- mug - Musgu
- muh - Mündü
- mui - Musi
- muj - Mabire
- muk - Mugom
- mum - Maiwala
- muo - Nyong
- mup - Malvi
- muq - Hmong, Eastern Xiangxi
- mur - Murle
- mus - Muskogisch
- mut - Muria, Western
- muu - Yaaku
- muv - Muthuvan
- muw - Mundari
- mux - Mbo-Ung
- muy - Muyang
- muz - Mursi
- mva - Manam
- mvb - Mattole
- mvc - Mam, Central
- mvd - Mamboru
- mve - Marwari
- mvf - Mongolian, Peripheral
- mvg - Mixtec, Yucuañe
- mvh - Mire
- mvi - Miyako
- mvj - Mam, Todos Santos Cuchumatán
- mvk - Mekmek
- mvl - Mbara (Australia)
- mvm - Muya
- mvn - Minaveha
- mvo - Marovo
- mvp - Duri
- mvq - Moere
- mvr - Marau
- mvs - Massep
- mvt - Mpotovoro
- mvu - Marfa
- mvv - Tagal Murut
- mvw - Machinga
- mvx - Meoswar
- mvy - Kohistani, Indus
- mvz - Mesqan
- mwa - Mwatebu
- mwb - Juwal
- mwc - Are
- mwd - Mudbura
- mwe - Mwera
- mwf - Murrinh-Patha
- mwg - Aiklep
- mwh - Mouk-Aria
- mwi - Labo
- mwj - Maligo
- mwk - Maninkakan, Kita
- mwl - Mirandesisch
- mwm - Sar
- mwn - Nyamwanga
- mwo - Maewo, Central
- mwp - Kala Lagaw Ya
- mwq - Chin, Mün
- mwr - Mārwārī
- mws - Mwimbi-Muthambi
- mwt - Moken
- mwu - Mittu
- mwv - Mentawai
- mww - Hmong Daw
- mwx - Mediak
- mwy - Mosiro
- mwz - Moingi
- mxa - Mixtec, Northwest Oaxaca
- mxb - Mixtec, Tezoatlán
- mxc - Manyika
- mxd - Modang
- mxe - Mele-Fila
- mxf - Malgbe
- mxg - Mbangala
- mxh - Mvuba
- mxi - Mozarabic
- mxj - Miju-Mishmi
- mxk - Monumbo
- mxl - Gbe, Maxi
- mxm - Meramera
- mxn - Moi
- mxo - Mbowe
- mxp - Mixe, Tlahuitoltepec
- mxq - Mixe, Juquila
- mxr - Kayan, Murik
- mxs - Mixtec, Huitepec
- mxt - Mixtec, Jamiltepec
- mxu - Mada
- mxv - Mixtec, Metlatónoc
- mxw - Namo
- mxx - Mahou
- mxy - Mixtec, Southeastern Nochixtlán
- mxz - Masela, Central
- mya - Birmanisch
- myb - Mbay
- myc - Mayeka
- myd - Maramba
- mye - Myene
- myf - Bambassi
- myg - Manta
- myh - Makah
- myi - Mina
- myj - Mangayat
- myk - Mamara Senoufo
- myl - Moma
- mym - Meen
- myo - Anfillo
- myp - Pirahã
- myq - Maninka, Forest
- myr - Muniche
- mys - Mesmes
- myt - Mandaya, Sangab
- myu - Mundurukú
- myv - Erza-Mordwinisch
- myw - Muyuw
- myx - Masaba
- myy - Macuna
- myz - Mandaic, Classical
- mza - Mixtec, Santa María Zacatepec
- mzb - Tumzabt
- mzc - Madagascar Sign Language
- mzd - Malimba
- mze - Morawa
- mzf - Aiku
- mzg - Monastic Sign Language
- mzh - Wichí Lhamtés Güisnay
- mzi - Mazatec, Ixcatlán
- mzj - Manya
- mzk - Mambila, Nigeria
- mzl - Mixe, Mazatlán
- mzm - Mumuye
- mzn - Mazanderani
- mzo - Matipuhy
- mzp - Movima
- mzq - Mori Atas
- mzr - Marúbo
- mzs - Macanese
- mzt - Mintil
- mzu - Inapang
- mzv - Manza
- mzw - Deg
- mzx - Mawayana
- mzy - Mozambican Sign Language
- mzz - Maiadomu
- naa - Namla
- nab - Nambikuára, Southern
- nac - Narak
- nad - Nijadali
- nae - Nakaela
- naf - Nabak
- nag - Naga Pidgin
- naj - Nalu
- nak - Nakanai
- nal - Nalik
- nam - Nangikurrunggurr
- nan - Chinese, Min Nan
- nao - Naaba
- naq - Nama
- nar - Iguta
- nas - Naasioi
- nat - Hungworo
- nau - Nauruanisch
- nav - Navajo-Sprache
- naw - Nawuri
- nax - Nakwi
- nay - Narrinyeri
- naz - Nahuatl, Coatepec
- nba - Nyemba
- nbb - Ndoe
- nbc - Naga, Chang
- nbd - Ngbinda
- nbe - Naga, Konyak
- nbf - Naxi
- nbg - Nagarchal
- nbh - Ngamo
- nbi - Naga, Mao
- nbj - Ngarinman
- nbk - Nake
- nbm - Ngbaka Mabo
- nbn - Kuri
- nbo - Nkukoli
- nbp - Nnam
- nbq - Nggem
- nbr - Numana-Nunku-Gbantu-Numbu
- nbs - Namibian Sign Language
- nbt - Na
- nbu - Naga, Rongmei
- nbv - Ngamambo
- nbw - Ngbandi, Southern
- nbx - Ngura
- nby - Ningera
- nca - Iyo
- ncb - Nicobarese, Central
- ncc - Ponam
- ncd - Nachering
- nce - Yale
- ncf - Notsi
- ncg - Nisgaa
- nch - Central Huasteca Nahuatl
- nci - Nahuatl, Classical
- ncj - Nahuatl, Northern Puebla
- nck - Nakara
- ncl - Nahuatl, Michoacán
- ncm - Nambo
- ncn - Nauna
- nco - Sibe
- ncp - Ndaktup
- ncr - Ncane
- ncs - Nicaraguan Sign Language
- nct - Naga, Chothe
- ncu - Chumburung
- ncx - Nahuatl, Central Puebla
- ncz - Natchez
- nda - Ndasa
- ndb - Kenswei Nsei
- ndc - Ndau
- ndd - Nde-Nsele-Nta
- ndf - Nadruvian
- ndg - Ndengereko
- ndh - Ndali
- ndi - Samba Leko
- ndj - Ndamba
- ndk - Ndaka
- ndl - Ndolo
- ndm - Ndam
- ndn - Ngundi
- ndo - Ndonga
- ndp - Ndo
- ndq - Ndombe
- ndr - Ndoola
- nds - Niederdeutsch
- ndt - Ndunga
- ndu - Dugun
- ndv - Ndut
- ndw - Ndobo
- ndx - Nduga
- ndy - Lutos
- ndz - Ndogo
- nea - Ngada, Eastern
- neb - Toura (Côte d'Ivoire)
- nec - Nedebang
- ned - Nde-Gbite
- nee - Kumak
- nef - Nefamese
- neg - Negidal
- neh - Nyenkha
- nei - Neo-Hittite
- nej - Neko
- nek - Neku
- nem - Nemi
- nen - Nengone
- neo - Ná-Meo
- nep - Nepali
- neq - North Central Mixe
- ner - Yahadian
- nes - Kinnauri, Bhoti
- net - Nete
- nev - Nyaheun
- new - Newārī
- nex - Neme
- ney - Neyo
- nez - Nez Perce
- nfa - Dhao
- nfd - Ahwai
- nfl - Ayiwo
- nfr - Nafaanra
- nfu - Mfumte
- nga - Ngbaka
- ngb - Ngbandi, Northern
- ngc - Ngombe
- ngd - Ngando
- nge - Ngemba
- ngg - Ngbaka Manza
- ngh - Nu
- ngi - Ngizim
- ngj - Ngie
- ngk - Ngalkbun
- ngl - Lomwe
- ngm - Ngatik Mens Creole
- ngn - Ngwo
- ngo - Ngoni
- ngp - Ngulu
- ngq - Ngurimi
- ngr - Nanggu
- ngs - Gvoko
- ngt - Ngeq
- ngu - Nahuatl, Guerrero
- ngv - Nagumi
- ngw - Ngwaba
- ngx - Nggwahyi
- ngy - Tibea
- ngz - Ngungwel
- nha - Nhanda
- nhb - Beng
- nhc - Nahuatl, Tabasco
- nhd - Chiripá
- nhe - Nahuatl, Eastern Huasteca
- nhf - Nhuwala
- nhg - Nahuatl, Tetelcingo
- nhh - Nahari
- nhi - Nahuatl, Tenango
- nhj - Nahuatl, Tlalitzlipa
- nhk - Nahuatl, Isthmus-Cosoleacaque
- nhm - Nahuatl, Morelos
- nhn - Nahuatl, Central
- nho - Takuu
- nhp - Nahuatl, Isthmus-Pajapan
- nhq - Nahuatl, Huaxcaleca
- nhr - Naro
- nhs - Nahuatl, Southeastern Puebla
- nht - Nahuatl, Ometepec
- nhu - Noone
- nhv - Nahuatl, Temascaltepec
- nhw - Nahuatl, Western Huasteca
- nhx - Nahuatl, Isthmus-Mecayapan
- nhy - Nahuatl, Northern Oaxaca
- nhz - Nahuatl, Santa María la Alta
- nia - Nias-Sprache
- nib - Nakama
- nid - Ngandi
- nie - Niellim
- nif - Nek
- nig - Ngalakan
- nih - Nyiha (Tanzania)
- nii - Nii
- nij - Ngaju
- nik - Nicobarese, Southern
- nil - Nila
- nim - Nilamba
- nin - Ninzo
- nio - Nganasan
- niq - Nandi
- nir - Nimboran
- nis - Nimi
- nit - Kolami, Southeastern
- niu - Niue-Sprache
- niv - Gilyak
- niw - Nimo
- nix - Hema
- niy - Ngiti
- niz - Ningil
- nja - Nzanyi
- njb - Naga, Nocte
- njd - Ndonde Hamba
- njh - Naga, Lotha
- nji - Gudanji
- njj - Njen
- njl - Njalgulgule
- njm - Naga, Angami
- njn - Naga, Liangmai
- njo - Naga, Ao
- njr - Njerep
- njs - Nisa
- njt - Ndyuka-Trio Pidgin
- nju - Ngadjunmaya
- njx - Kunyi
- njy - Njyem
- nka - Nkoya
- nkb - Naga, Khoibu
- nkc - Nkongho
- nkd - Koireng
- nke - Duke
- nkf - Naga, Inpui
- nkg - Nekgini
- nkh - Naga, Khezha
- nki - Naga, Thangal
- nkj - Nakai
- nkk - Nokuku
- nkm - Namat
- nkn - Nkangala
- nko - Nkonya
- nkp - Niuatoputapu
- nkr - Nukuoro
- nks - Asmat, North
- nkt - Nyika (Tanzania)
- nku - Kulango, Bouna
- nkv - Nyika (Malawi and Zambia)
- nkw - Nkutu
- nkx - Nkoroo
- nky - Naga, Khiamniungan
- nkz - Nkari
- nla - Ngombale
- nlc - Nalca
- nld - Niederländisch
- nle - Nyala, East
- nlg - Gela
- nli - Grangali
- nlj - Nyali
- nlk - Ninia Yali
- nll - Nihali
- nln - Nahuatl, Durango
- nlo - Ngul
- nlr - Ngarla
- nlu - Nchumbulu
- nlv - Nahuatl, Orizaba
- nlx - Nahali
- nly - Nyamal
- nlz - Nalögo
- nma - Naga, Maram
- nmb - Nambas, Big
- nmc - Ngam
- nmd - Ndumu
- nme - Naga, Mzieme
- nmf - Naga, Tangkhul
- nmg - Ngumba
- nmh - Naga, Monsang
- nmi - Nyam
- nmj - Ngombe
- nmk - Namakura
- nml - Ndemli
- nmm - Manangba
- nmn - !Xóõ
- nmo - Naga, Moyon
- nmp - Nimanbur
- nmq - Nambya
- nmr - Nimbari
- nms - Letemboi
- nmt - Namonuito
- nmu - Maidu, Northeast
- nmv - Ngamini
- nmw - Nimoa
- nmx - Nama (Papua New Guinea)
- nmy - Namuyi
- nmz - Nawdm
- nna - Nyangumarta
- nnb - Nande
- nnc - Nancere
- nnd - Ambae, West
- nne - Ngandyera
- nnf - Ngaing
- nng - Naga, Maring
- nnh - Ngiemboon
- nni - Nuaulu, North
- nnj - Nyangatom
- nnk - Nankina
- nnl - Naga, Northern Rengma
- nnm - Namia
- nnn - Ngete
- nno - Nynorsk
- nnp - Naga, Wancho
- nnq - Ngindo
- nnr - Narungga
- nns - Ningye
- nnt - Nanticoke
- nnu - Dwang
- nnv - Nugunu
- nnw - Nuni, Southern
- nnx - Ngong
- nny - Nyangga
- nnz - Ndanda
- noa - Woun Meu
- nob - Bokmål
- noc - Nuk
- nod - Northern Thai
- noe - Nimadi
- nof - Nomane
- nog - Nogaisch
- noh - Nomu
- noi - Noiri
- nok - Nooksack
- nom - Nocamán
- non - Altnorwegisch
- noo - Nootka
- nop - Numanggang
- noq - Ngongo
- nor - Norwegisch
- nos - Eastern Nisu
- not - Nomatsiguenga
- nou - Ewage-Notu
- nov - Novial
- now - Nyambo
- noy - Noy
- noz - Nayi
- npa - Nar Phu
- npb - Nupbikha
- nph - Naga, Phom
- npl - Southeastern Puebla Nahuatl
- npn - Mondropolon
- npo - Naga, Pochuri
- nps - Nipsan
- npu - Naga, Puimei
- npy - Napu
- nqg - Ede Nago
- nqk - Kura Ede Nago
- nqm - Ndom
- nqn - Nen
- nqo - N'Ko
- nra - Ngom
- nrb - Nara
- nrc - Noric
- nre - Naga, Southern Rengma
- nrg - Narango
- nri - Naga, Chokri
- nrl - Ngarluma
- nrm - Narom
- nrn - Norn
- nrp - North Picene
- nrr - Norra
- nrt - Northern Kalapuya
- nrx - Ngurmbur
- nrz - Lala
- nsa - Naga, Sangtam
- nsc - Nshi
- nsd - Southern Nisu
- nse - Nsenga
- nsg - Ngasa
- nsh - Ngoshie
- nsi - Nigerian Sign Language
- nsk - Naskapi
- nsl - Norwegian Sign Language
- nsm - Naga, Sumi
- nsn - Nehan
- nso - Pedi-Sprache
- nsp - Nepalese Sign Language
- nsq - Miwok, Northern Sierra
- nsr - Maritime Sign Language
- nss - Nali
- nst - Naga, Tase
- nsu - Sierra Negra Nahuatl
- nsv - Southwestern Nisu
- nsw - Navut
- nsx - Nsongo
- nsy - Nasal
- nsz - Nisenan
- nte - Nathembo
- nti - Natioro
- ntj - Ngaanyatjarra
- ntk - Ikoma
- ntm - Nateni
- nto - Ntomba
- ntp - Northern Tepehuan
- ntr - Delo
- nts - Natagaimas
- ntu - Natügu
- ntw - Nottoway
- nty - Mantsi
- ntz - Natanzi
- nua - Yuaga
- nuc - Nukuini
- nud - Ngala
- nue - Ngundu
- nuf - Nusu
- nug - Nungali
- nuh - Ndunda
- nui - Ngumbi
- nuj - Nyole
- nul - Nusa Laut
- num - Niuafoou
- nun - Nung
- nuo - Nguôn
- nup - Nupe-Nupe-Tako
- nuq - Nukumanu
- nur - Nukuria
- nus - Nuer
- nut - Nung
- nuu - Ngbundu
- nuv - Nuni, Northern
- nuw - Nguluwan
- nux - Mehek
- nuy - Nunggubuyu
- nuz - Nahuatl, Tlamacazapa
- nvh - Nasarian
- nvm - Namiae
- nwa - Nawathinehena
- nwb - Nyabwa
- nwc - Alt-Newārī
- nwe - Ngwe
- nwi - Southwest Tanna
- nwm - Nyamusa-Molo
- nwr - Nawaru
- nwx - Middle Newar
- nwy - Nottoway-Meherrin
- nxa - Nauete
- nxd - Ngando
- nxe - Nage
- nxg - Ngada
- nxi - Nindi
- nxj - Nyadu
- nxl - Nuaulu, South
- nxm - Numidian
- nxn - Ngawun
- nxr - Ninggerum
- nxu - Narau
- nxx - Nafri
- nya - Nyanja-Sprache
- nyb - Nyangbo
- nyc - Nyanga-li
- nyd - Nyore
- nye - Nyengo
- nyf - Giryama
- nyg - Nyindu
- nyh - Nyigina
- nyi - Ama
- nyj - Nyanga
- nyk - Nyaneka
- nyl - Nyeu
- nym - Nyamwezi-Sprache
- nyn - Nkole-Sprache
- nyo - Nyoro-Sprache
- nyp - Nyangi
- nyq - Nayini
- nyr - Nyiha (Malawi)
- nys - Nyunga
- nyt - Nyawaygi
- nyu - Nyungwe
- nyv - Nyulnyul
- nyw - Nyaw
- nyx - Nganyaywana
- nyy - Nyakyusa-Ngonde
- nza - Mbembe, Tigon
- nzb - Njebi
- nzi - Nzima-Sprache
- nzk - Nzakara
- nzm - Naga, Zeme
- nzs - New Zealand Sign Language
- nzu - Teke-Nzikou
- nzy - Nzakambay
- oaa - Orok
- oac - Oroch
- oar - Old Aramaic (up to 700 BCE)
- oav - Old Avar
- obi - Obispeño
- obl - Oblo
- obm - Moabite
- obo - Manobo, Obo
- obr - Old Burmese
- obt - Old Breton
- obu - Obulom
- oca - Ocaina
- och - Old Chinese
- oci - Okzitanisch
- oco - Old Cornish
- ocu - Matlatzinca, Atzingo
- oda - Odut
- odk - Od
- odt - Old Dutch
- odu - Odual
- ofo - Ofo
- ofs - Old Frisian
- ofu - Efutop
- ogb - Ogbia
- ogc - Ogbah
- oge - Old Georgian
- ogg - Ogbogolo
- ogo - Khana
- ogu - Ogbronuagum
- oht - Old Hittite
- ohu - Old Hungarian
- oia - Oirata
- oin - Inebu One
- ojb - Northwestern Ojibwa
- ojc - Central Ojibwa
- ojg - Eastern Ojibwa
- oji - Ojibwa-Sprache
- ojp - Old Japanese
- ojs - Severn Ojibwa
- ojv - Ontong Java
- ojw - Western Ojibwa
- oka - Okanagan
- okb - Okobo
- okd - Okodia
- oke - Okpe (Southwestern Edo)
- okh - Koresh-e Rostam
- oki - Okiek
- okj - Oko-Juwoi
- okk - Kwamtim One
- okl - Old Kentish Sign Language
- okm - Middle Korean (10th-16th cent.)
- okn - Oki-No-Erabu
- oko - Old Korean (3rd-9th cent.)
- okr - Kirike
- oks - Oko-Eni-Osayen
- oku - Oku
- okv - Orokaiva
- okx - Okpe (Northwestern Edo)
- ola - Walungge
- old - Mochi
- ole - Olekha
- olm - Oloma
- olo - Livvi
- olr - Olrat
- oma - Omaha-Ponca
- omb - Ambae, East
- omc - Mochica
- ome - Omejes
- omg - Omagua
- omi - Omi
- omk - Omok
- oml - Ombo
- omn - Minoan
- omo - Utarmbung
- omp - Old Manipuri
- omr - Old Marathi
- omt - Omotik
- omu - Omurano
- omw - South Tairora
- omx - Old Mon
- ona - Ona
- onb - Lingao
- one - Oneida
- ong - Olo
- oni - Onin
- onj - Onjob
- onk - Kabore One
- onn - Onobasulu
- ono - Onondaga
- onp - Sartang
- onr - Northern One
- ons - Ono
- ont - Ontenu
- onu - Unua
- onw - Old Nubian
- onx - Onin Based Pidgin
- ood - Tohono O'odham
- oog - Ong
- oon - Önge
- oor - Oorlams
- oos - Old Ossetic
- opa - Okpamheri
- opk - Kopkaka
- opm - Oksapmin
- opo - Opao
- opt - Opata
- opy - Ofayé
- ora - Oroha
- orc - Orma
- ore - Orejón
- org - Oring
- orh - Oroqen
- ori - Oriya-Sprache
- orm - Galla-Sprache
- orn - Orang Kanaq
- oro - Orokolo
- orr - Oruma
- ors - Orang Seletar
- ort - Adivasi Oriya
- oru - Ormuri
- orv - Old Russian
- orw - Oro Win
- orx - Oro
- orz - Ormu
- osa - Osage-Sprache
- osc - Oscan
- osi - Osing
- oso - Ososo
- osp - Old Spanish
- oss - Ossetisch
- ost - Osatu
- osu - Southern One
- osx - Old Saxon
- ota - Osmanisch
- otb - Old Tibetan
- otd - Dohoi
- ote - Mezquital Otomi
- oti - Oti
- otk - Old Turkish
- otl - Tilapa Otomi
- otm - Eastern Highland Otomi
- otn - Tenango Otomi
- otq - Querétaro Otomi
- otr - Otoro
- ots - Estado de México Otomi
- ott - Temoaya Otomi
- otu - Otuke
- otw - Ottawa
- otx - Texcatepec Otomi
- oty - Old Tamil
- otz - Ixtenco Otomi
- oua - Tagargrent
- oub - Glio-Oubi
- oue - Ounge
- oui - Old Uighur
- oum - Ouma
- oun - !O!ung
- owi - Owiniga
- owl - Old Welsh
- oyb - Oy
- oyd - Oyda
- oym - Wayampi
- oyy - Oya'oya
- ozm - Koonzime
- pab - Parecís
- pac - Pacoh
- pad - Paumarí
- pae - Pagibete
- paf - Paranawát
- pag - Pangasinan-Sprache
- pah - Tenharim
- pai - Pe
- paj - Ipeka-Tapuia
- pak - Parakanã
- pal - Mittelpersisch
- pam - Pampanggan-Sprache
- pan - Pandschabi-Sprache
- pao - Northern Paiute
- pap - Papiamento
- paq - Parya
- par - Panamint
- pas - Papasena
- pat - Papitalai
- pau - Palau-Sprache
- pav - Pakaásnovos
- paw - Pawnee
- pax - Pankararé
- pay - Pech
- paz - Pankararú
- pbb - Páez
- pbc - Patamona
- pbe - Mezontla Popoloca
- pbf - Coyotepec Popoloca
- pbg - Paraujano
- pbh - Eñepa
- pbi - Parkwa
- pbl - Mak
- pbn - Kpasam
- pbo - Papel
- pbp - Badyara
- pbr - Pangwa
- pbs - Central Pame
- pbt - Southern Pashto
- pbu - Northern Pashto
- pbv - Pnar
- pby - Pyu
- pbz - Palu
- pca - Santa Inés Ahuatempan Popoloca
- pcb - Pear
- pcc - Bouyei
- pcd - Picard
- pce - Ruching Palaung
- pcf - Paliyan
- pcg - Paniya
- pch - Pardhan
- pci - Duruwa
- pcj - Parenga
- pck - Chin, Paite
- pcl - Pardhi
- pcm - Nigerian Pidgin
- pcn - Piti
- pcp - Pacahuara
- pcr - Panang
- pcw - Pyapun
- pda - Anam
- pdc - German, Pennsylvania
- pdi - Pa Di
- pdn - Podena
- pdo - Padoe
- pdt - Plautdietsch
- pdu - Kayan
- pea - Indonesian, Peranakan
- peb - Eastern Pomo
- ped - Mala
- pee - Taje
- pef - Northeastern Pomo
- peg - Pengo
- peh - Bonan
- pei - Chichimeca-Jonaz
- pej - Northern Pomo
- pek - Penchal
- pel - Pekal
- pem - Phende
- peo - Altpersisch
- pep - Kunja
- peq - Southern Pomo
- pes - Farsi, Western
- pev - Pémono
- pex - Petats
- pey - Petjo
- pez - Eastern Penan
- pfa - Pááfang
- pfe - Peere
- pfl - Pfaelzisch
- pga - Sudanese Creole Arabic
- pgg - Pangwali
- pgi - Pagi
- pgk - Rerep
- pgn - Paelignian
- pgs - Pangseng
- pgu - Pagu
- pgy - Pongyong
- pha - Pa-Hng
- phd - Phudagi
- phg - Phuong
- phh - Phukha
- phk - Phake
- phl - Phalura
- phm - Phimbi
- phn - Phönikisch
- pho - Phunoi
- phq - Phana'
- phr - Pahari-Potwari
- pht - Phu Thai
- phu - Phuan
- phv - Pahlavani
- phw - Phangduwali
- pia - Pima Bajo
- pib - Yine
- pic - Pinji
- pid - Piaroa
- pie - Piro
- pif - Pingelapese
- pig - Pisabo
- pih - Pitcairn-Norfolk
- pii - Pini
- pij - Pijao
- pil - Yom
- pim - Powhatan
- pin - Piame
- pio - Piapoco
- pip - Pero
- pir - Piratapuyo
- pis - Pijin
- pit - Pitta Pitta
- piu - Pintupi-Luritja
- piv - Pileni
- piw - Pimbwe
- pix - Piu
- piy - Piya-Kwonci
- piz - Pije
- pjt - Pitjantjatjara
- pka - Ardham?gadh? Pr?krit
- pkb - Pokomo
- pkc - Paekche
- pkg - Pak-Tong
- pkh - Pankhu
- pkn - Pakanha
- pko - Pökoot
- pkp - Pukapuka
- pkr - Attapady Kurumba
- pks - Pakistan Sign Language
- pkt - Maleng
- pku - Paku
- pla - Miani
- plb - Polonombauk
- plc - Central Palawano
- pld - Polari
- ple - Palu'e
- plg - Pilagá
- plh - Paulohi
- pli - Pāli
- plj - Polci
- plk - Kohistani Shina
- pll - Shwe Palaung
- pln - Palenquero
- plo - Oluta Popoluca
- plp - Palpa
- plq - Palaic
- plr - Palaka Senoufo
- pls - San Marcos Tlalcoyalco Popoloca
- plt - Plateau Malagasy
- plu - Palikúr
- plv - Southwest Palawano
- plw - Brooke's Point Palawano
- ply - Bolyu
- plz - Paluan
- pma - Paama
- pmb - Pambia
- pmc - Palumata
- pme - Pwaamei
- pmf - Pamona
- pmh - M?h?r???ri Pr?krit
- pmi - Northern Pumi
- pmj - Southern Pumi
- pmk - Pamlico
- pml - Lingua Franca
- pmm - Pomo
- pmn - Pam
- pmo - Pom
- pmq - Northern Pame
- pmr - Paynamar
- pms - Piemontese
- pmt - Tuamotuan
- pmu - Mirpur Panjabi
- pmw - Miwok, Plains
- pmx - Naga, Poumei
- pmy - Papuan Malay
- pmz - Southern Pame
- pna - Punan Bah-Biau
- pnb - Western Panjabi
- pnc - Pannei
- pne - Western Penan
- png - Pongu
- pnh - Penrhyn
- pni - Aoheng
- pnm - Punan Batu 1
- pnn - Pinai-Hagahai
- pno - Panobo
- pnp - Pancana
- pnq - Pana (Burkina Faso)
- pnr - Panim
- pns - Ponosakan
- pnt - Pontic
- pnu - Bunu, Jiongnai
- pnv - Pinigura
- pnw - Panytyima
- pnx - Phong-Kniang
- pny - Pinyin
- pnz - Pana (Central African Republic)
- poc - Poqomam
- pod - Ponares
- poe - San Juan Atzingo Popoloca
- pof - Poke
- pog - Potiguára
- poh - Poqomchi'
- poi - Highland Popoluca
- pok - Pokangá
- pol - Polnisch
- pom - Southeastern Pomo
- pon - Ponapeanisch
- poo - Central Pomo
- pop - Pwapwa
- poq - Texistepec Popoluca
- por - Portugiesisch
- pos - Sayula Popoluca
- pot - Potawatomi
- pov - Crioulo, Upper Guinea
- pow - San Felipe Otlaltepec Popoloca
- pox - Polabian
- poy - Pogolo
- ppa - Pao
- ppe - Papi
- ppi - Paipai
- ppk - Uma
- ppl - Pipil
- ppm - Papuma
- ppn - Papapana
- ppo - Folopa
- ppp - Pelende
- ppq - Pei
- ppr - Piru
- pps - San Luís Temalacayuca Popoloca
- ppt - Pare
- ppu - Papora
- pqa - Pa'a
- pqm - Malecite-Passamaquoddy
- prb - Lua
- prc - Parachi
- prd - Parsi-Dari
- pre - Principense
- prg - Prussian
- prh - Porohanon
- pri - Paicî
- prk - Parauk
- prl - Peruvian Sign Language
- prm - Kibiri
- prn - Prasuni
- pro - Altokzitanisch
- prp - Parsi
- prq - Ashéninka Perené
- prr - Puri
- prs - Farsi, Eastern
- prt - Phai
- pru - Puragi
- prw - Parawen
- prx - Purik
- pry - Pray 3
- prz - Providencia Sign Language
- psa - Awyu, Asue
- psc - Persian Sign Language
- psd - Plains Indian Sign Language
- pse - Central Malay
- psg - Penang Sign Language
- psh - Southwest Pashayi
- psi - Southeast Pashayi
- psl - Puerto Rican Sign Language
- psm - Pauserna
- psn - Panasuan
- pso - Polish Sign Language
- psp - Philippine Sign Language
- psq - Pasi
- psr - Portuguese Sign Language
- pss - Kaulong
- pst - Central Pashto
- psu - Sauraseni Pr?krit
- psw - Port Sandwich
- psy - Piscataway
- pta - Pai Tavytera
- pth - Pataxó Hã-Ha-Hãe
- pti - Pintiini
- ptn - Patani
- pto - Zo'é
- ptp - Patep
- ptr - Piamatsina
- ptt - Enrekang
- ptu - Bambam
- ptv - Port Vato
- ptw - Pentlatch
- pty - Pathiya
- pua - Western Highland Purepecha
- pub - Purum
- puc - Punan Merap
- pud - Punan Aput
- pue - Puelche
- puf - Punan Merah
- pug - Phuie
- pui - Puinave
- puj - Punan Tubu
- puk - Pu Ko
- pum - Puma
- puo - Puoc
- pup - Pulabu
- puq - Puquina
- pur - Puruborá
- pus - Paschtu
- put - Putoh
- puu - Punu
- puw - Puluwatese
- pux - Puare
- puy - Purisimeño
- puz - Purum Naga
- pwa - Pawaia
- pwb - Panawa
- pwg - Gapapaiwa
- pwm - Molbog
- pwn - Paiwan
- pwo - Karen, Pwo Western
- pwr - Powari
- pww - Karen, Pwo Northern
- pxm - Quetzaltepec Mixe
- pye - Krumen, Pye
- pym - Fyam
- pyn - Poyanáwa
- pyu - Puyuma
- pyx - Pyu (Myanmar)
- pyy - Pyen
- pzn - Para Naga
- qaa - Reserved for local use
- qab - Reserved for local use
- qac - Reserved for local use
- qad - Reserved for local use
- qae - Reserved for local use
- qaf - Reserved for local use
- qag - Reserved for local use
- qah - Reserved for local use
- qai - Reserved for local use
- qaj - Reserved for local use
- qak - Reserved for local use
- qal - Reserved for local use
- qam - Reserved for local use
- qan - Reserved for local use
- qao - Reserved for local use
- qap - Reserved for local use
- qaq - Reserved for local use
- qar - Reserved for local use
- qas - Reserved for local use
- qat - Reserved for local use
- qau - Reserved for local use
- qav - Reserved for local use
- qaw - Reserved for local use
- qax - Reserved for local use
- qay - Reserved for local use
- qaz - Reserved for local use
- qba - Reserved for local use
- qbb - Reserved for local use
- qbc - Reserved for local use
- qbd - Reserved for local use
- qbe - Reserved for local use
- qbf - Reserved for local use
- qbg - Reserved for local use
- qbh - Reserved for local use
- qbi - Reserved for local use
- qbj - Reserved for local use
- qbk - Reserved for local use
- qbl - Reserved for local use
- qbm - Reserved for local use
- qbn - Reserved for local use
- qbo - Reserved for local use
- qbp - Reserved for local use
- qbq - Reserved for local use
- qbr - Reserved for local use
- qbs - Reserved for local use
- qbt - Reserved for local use
- qbu - Reserved for local use
- qbv - Reserved for local use
- qbw - Reserved for local use
- qbx - Reserved for local use
- qby - Reserved for local use
- qbz - Reserved for local use
- qca - Reserved for local use
- qcb - Reserved for local use
- qcc - Reserved for local use
- qcd - Reserved for local use
- qce - Reserved for local use
- qcf - Reserved for local use
- qcg - Reserved for local use
- qch - Reserved for local use
- qci - Reserved for local use
- qcj - Reserved for local use
- qck - Reserved for local use
- qcl - Reserved for local use
- qcm - Reserved for local use
- qcn - Reserved for local use
- qco - Reserved for local use
- qcp - Reserved for local use
- qcq - Reserved for local use
- qcr - Reserved for local use
- qcs - Reserved for local use
- qct - Reserved for local use
- qcu - Reserved for local use
- qcv - Reserved for local use
- qcw - Reserved for local use
- qcx - Reserved for local use
- qcy - Reserved for local use
- qcz - Reserved for local use
- qda - Reserved for local use
- qdb - Reserved for local use
- qdc - Reserved for local use
- qdd - Reserved for local use
- qde - Reserved for local use
- qdf - Reserved for local use
- qdg - Reserved for local use
- qdh - Reserved for local use
- qdi - Reserved for local use
- qdj - Reserved for local use
- qdk - Reserved for local use
- qdl - Reserved for local use
- qdm - Reserved for local use
- qdn - Reserved for local use
- qdo - Reserved for local use
- qdp - Reserved for local use
- qdq - Reserved for local use
- qdr - Reserved for local use
- qds - Reserved for local use
- qdt - Reserved for local use
- qdu - Reserved for local use
- qdv - Reserved for local use
- qdw - Reserved for local use
- qdx - Reserved for local use
- qdy - Reserved for local use
- qdz - Reserved for local use
- qea - Reserved for local use
- qeb - Reserved for local use
- qec - Reserved for local use
- qed - Reserved for local use
- qee - Reserved for local use
- qef - Reserved for local use
- qeg - Reserved for local use
- qeh - Reserved for local use
- qei - Reserved for local use
- qej - Reserved for local use
- qek - Reserved for local use
- qel - Reserved for local use
- qem - Reserved for local use
- qen - Reserved for local use
- qeo - Reserved for local use
- qep - Reserved for local use
- qeq - Reserved for local use
- qer - Reserved for local use
- qes - Reserved for local use
- qet - Reserved for local use
- qeu - Reserved for local use
- qev - Reserved for local use
- qew - Reserved for local use
- qex - Reserved for local use
- qey - Reserved for local use
- qez - Reserved for local use
- qfa - Reserved for local use
- qfb - Reserved for local use
- qfc - Reserved for local use
- qfd - Reserved for local use
- qfe - Reserved for local use
- qff - Reserved for local use
- qfg - Reserved for local use
- qfh - Reserved for local use
- qfi - Reserved for local use
- qfj - Reserved for local use
- qfk - Reserved for local use
- qfl - Reserved for local use
- qfm - Reserved for local use
- qfn - Reserved for local use
- qfo - Reserved for local use
- qfp - Reserved for local use
- qfq - Reserved for local use
- qfr - Reserved for local use
- qfs - Reserved for local use
- qft - Reserved for local use
- qfu - Reserved for local use
- qfv - Reserved for local use
- qfw - Reserved for local use
- qfx - Reserved for local use
- qfy - Reserved for local use
- qfz - Reserved for local use
- qga - Reserved for local use
- qgb - Reserved for local use
- qgc - Reserved for local use
- qgd - Reserved for local use
- qge - Reserved for local use
- qgf - Reserved for local use
- qgg - Reserved for local use
- qgh - Reserved for local use
- qgi - Reserved for local use
- qgj - Reserved for local use
- qgk - Reserved for local use
- qgl - Reserved for local use
- qgm - Reserved for local use
- qgn - Reserved for local use
- qgo - Reserved for local use
- qgp - Reserved for local use
- qgq - Reserved for local use
- qgr - Reserved for local use
- qgs - Reserved for local use
- qgt - Reserved for local use
- qgu - Reserved for local use
- qgv - Reserved for local use
- qgw - Reserved for local use
- qgx - Reserved for local use
- qgy - Reserved for local use
- qgz - Reserved for local use
- qha - Reserved for local use
- qhb - Reserved for local use
- qhc - Reserved for local use
- qhd - Reserved for local use
- qhe - Reserved for local use
- qhf - Reserved for local use
- qhg - Reserved for local use
- qhh - Reserved for local use
- qhi - Reserved for local use
- qhj - Reserved for local use
- qhk - Reserved for local use
- qhl - Reserved for local use
- qhm - Reserved for local use
- qhn - Reserved for local use
- qho - Reserved for local use
- qhp - Reserved for local use
- qhq - Reserved for local use
- qhr - Reserved for local use
- qhs - Reserved for local use
- qht - Reserved for local use
- qhu - Reserved for local use
- qhv - Reserved for local use
- qhw - Reserved for local use
- qhx - Reserved for local use
- qhy - Reserved for local use
- qhz - Reserved for local use
- qia - Reserved for local use
- qib - Reserved for local use
- qic - Reserved for local use
- qid - Reserved for local use
- qie - Reserved for local use
- qif - Reserved for local use
- qig - Reserved for local use
- qih - Reserved for local use
- qii - Reserved for local use
- qij - Reserved for local use
- qik - Reserved for local use
- qil - Reserved for local use
- qim - Reserved for local use
- qin - Reserved for local use
- qio - Reserved for local use
- qip - Reserved for local use
- qiq - Reserved for local use
- qir - Reserved for local use
- qis - Reserved for local use
- qit - Reserved for local use
- qiu - Reserved for local use
- qiv - Reserved for local use
- qiw - Reserved for local use
- qix - Reserved for local use
- qiy - Reserved for local use
- qiz - Reserved for local use
- qja - Reserved for local use
- qjb - Reserved for local use
- qjc - Reserved for local use
- qjd - Reserved for local use
- qje - Reserved for local use
- qjf - Reserved for local use
- qjg - Reserved for local use
- qjh - Reserved for local use
- qji - Reserved for local use
- qjj - Reserved for local use
- qjk - Reserved for local use
- qjl - Reserved for local use
- qjm - Reserved for local use
- qjn - Reserved for local use
- qjo - Reserved for local use
- qjp - Reserved for local use
- qjq - Reserved for local use
- qjr - Reserved for local use
- qjs - Reserved for local use
- qjt - Reserved for local use
- qju - Reserved for local use
- qjv - Reserved for local use
- qjw - Reserved for local use
- qjx - Reserved for local use
- qjy - Reserved for local use
- qjz - Reserved for local use
- qka - Reserved for local use
- qkb - Reserved for local use
- qkc - Reserved for local use
- qkd - Reserved for local use
- qke - Reserved for local use
- qkf - Reserved for local use
- qkg - Reserved for local use
- qkh - Reserved for local use
- qki - Reserved for local use
- qkj - Reserved for local use
- qkk - Reserved for local use
- qkl - Reserved for local use
- qkm - Reserved for local use
- qkn - Reserved for local use
- qko - Reserved for local use
- qkp - Reserved for local use
- qkq - Reserved for local use
- qkr - Reserved for local use
- qks - Reserved for local use
- qkt - Reserved for local use
- qku - Reserved for local use
- qkv - Reserved for local use
- qkw - Reserved for local use
- qkx - Reserved for local use
- qky - Reserved for local use
- qkz - Reserved for local use
- qla - Reserved for local use
- qlb - Reserved for local use
- qlc - Reserved for local use
- qld - Reserved for local use
- qle - Reserved for local use
- qlf - Reserved for local use
- qlg - Reserved for local use
- qlh - Reserved for local use
- qli - Reserved for local use
- qlj - Reserved for local use
- qlk - Reserved for local use
- qll - Reserved for local use
- qlm - Reserved for local use
- qln - Reserved for local use
- qlo - Reserved for local use
- qlp - Reserved for local use
- qlq - Reserved for local use
- qlr - Reserved for local use
- qls - Reserved for local use
- qlt - Reserved for local use
- qlu - Reserved for local use
- qlv - Reserved for local use
- qlw - Reserved for local use
- qlx - Reserved for local use
- qly - Reserved for local use
- qlz - Reserved for local use
- qma - Reserved for local use
- qmb - Reserved for local use
- qmc - Reserved for local use
- qmd - Reserved for local use
- qme - Reserved for local use
- qmf - Reserved for local use
- qmg - Reserved for local use
- qmh - Reserved for local use
- qmi - Reserved for local use
- qmj - Reserved for local use
- qmk - Reserved for local use
- qml - Reserved for local use
- qmm - Reserved for local use
- qmn - Reserved for local use
- qmo - Reserved for local use
- qmp - Reserved for local use
- qmq - Reserved for local use
- qmr - Reserved for local use
- qms - Reserved for local use
- qmt - Reserved for local use
- qmu - Reserved for local use
- qmv - Reserved for local use
- qmw - Reserved for local use
- qmx - Reserved for local use
- qmy - Reserved for local use
- qmz - Reserved for local use
- qna - Reserved for local use
- qnb - Reserved for local use
- qnc - Reserved for local use
- qnd - Reserved for local use
- qne - Reserved for local use
- qnf - Reserved for local use
- qng - Reserved for local use
- qnh - Reserved for local use
- qni - Reserved for local use
- qnj - Reserved for local use
- qnk - Reserved for local use
- qnl - Reserved for local use
- qnm - Reserved for local use
- qnn - Reserved for local use
- qno - Reserved for local use
- qnp - Reserved for local use
- qnq - Reserved for local use
- qnr - Reserved for local use
- qns - Reserved for local use
- qnt - Reserved for local use
- qnu - Reserved for local use
- qnv - Reserved for local use
- qnw - Reserved for local use
- qnx - Reserved for local use
- qny - Reserved for local use
- qnz - Reserved for local use
- qoa - Reserved for local use
- qob - Reserved for local use
- qoc - Reserved for local use
- qod - Reserved for local use
- qoe - Reserved for local use
- qof - Reserved for local use
- qog - Reserved for local use
- qoh - Reserved for local use
- qoi - Reserved for local use
- qoj - Reserved for local use
- qok - Reserved for local use
- qol - Reserved for local use
- qom - Reserved for local use
- qon - Reserved for local use
- qoo - Reserved for local use
- qop - Reserved for local use
- qoq - Reserved for local use
- qor - Reserved for local use
- qos - Reserved for local use
- qot - Reserved for local use
- qou - Reserved for local use
- qov - Reserved for local use
- qow - Reserved for local use
- qox - Reserved for local use
- qoy - Reserved for local use
- qoz - Reserved for local use
- qpa - Reserved for local use
- qpb - Reserved for local use
- qpc - Reserved for local use
- qpd - Reserved for local use
- qpe - Reserved for local use
- qpf - Reserved for local use
- qpg - Reserved for local use
- qph - Reserved for local use
- qpi - Reserved for local use
- qpj - Reserved for local use
- qpk - Reserved for local use
- qpl - Reserved for local use
- qpm - Reserved for local use
- qpn - Reserved for local use
- qpo - Reserved for local use
- qpp - Reserved for local use
- qpq - Reserved for local use
- qpr - Reserved for local use
- qps - Reserved for local use
- qpt - Reserved for local use
- qpu - Reserved for local use
- qpv - Reserved for local use
- qpw - Reserved for local use
- qpx - Reserved for local use
- qpy - Reserved for local use
- qpz - Reserved for local use
- qqa - Reserved for local use
- qqb - Reserved for local use
- qqc - Reserved for local use
- qqd - Reserved for local use
- qqe - Reserved for local use
- qqf - Reserved for local use
- qqg - Reserved for local use
- qqh - Reserved for local use
- qqi - Reserved for local use
- qqj - Reserved for local use
- qqk - Reserved for local use
- qql - Reserved for local use
- qqm - Reserved for local use
- qqn - Reserved for local use
- qqo - Reserved for local use
- qqp - Reserved for local use
- qqq - Reserved for local use
- qqr - Reserved for local use
- qqs - Reserved for local use
- qqt - Reserved for local use
- qqu - Reserved for local use
- qqv - Reserved for local use
- qqw - Reserved for local use
- qqx - Reserved for local use
- qqy - Reserved for local use
- qqz - Reserved for local use
- qra - Reserved for local use
- qrb - Reserved for local use
- qrc - Reserved for local use
- qrd - Reserved for local use
- qre - Reserved for local use
- qrf - Reserved for local use
- qrg - Reserved for local use
- qrh - Reserved for local use
- qri - Reserved for local use
- qrj - Reserved for local use
- qrk - Reserved for local use
- qrl - Reserved for local use
- qrm - Reserved for local use
- qrn - Reserved for local use
- qro - Reserved for local use
- qrp - Reserved for local use
- qrq - Reserved for local use
- qrr - Reserved for local use
- qrs - Reserved for local use
- qrt - Reserved for local use
- qru - Reserved for local use
- qrv - Reserved for local use
- qrw - Reserved for local use
- qrx - Reserved for local use
- qry - Reserved for local use
- qrz - Reserved for local use
- qsa - Reserved for local use
- qsb - Reserved for local use
- qsc - Reserved for local use
- qsd - Reserved for local use
- qse - Reserved for local use
- qsf - Reserved for local use
- qsg - Reserved for local use
- qsh - Reserved for local use
- qsi - Reserved for local use
- qsj - Reserved for local use
- qsk - Reserved for local use
- qsl - Reserved for local use
- qsm - Reserved for local use
- qsn - Reserved for local use
- qso - Reserved for local use
- qsp - Reserved for local use
- qsq - Reserved for local use
- qsr - Reserved for local use
- qss - Reserved for local use
- qst - Reserved for local use
- qsu - Reserved for local use
- qsv - Reserved for local use
- qsw - Reserved for local use
- qsx - Reserved for local use
- qsy - Reserved for local use
- qsz - Reserved for local use
- qta - Reserved for local use
- qtb - Reserved for local use
- qtc - Reserved for local use
- qtd - Reserved for local use
- qte - Reserved for local use
- qtf - Reserved for local use
- qtg - Reserved for local use
- qth - Reserved for local use
- qti - Reserved for local use
- qtj - Reserved for local use
- qtk - Reserved for local use
- qtl - Reserved for local use
- qtm - Reserved for local use
- qtn - Reserved for local use
- qto - Reserved for local use
- qtp - Reserved for local use
- qtq - Reserved for local use
- qtr - Reserved for local use
- qts - Reserved for local use
- qtt - Reserved for local use
- qtu - Reserved for local use
- qtv - Reserved for local use
- qtw - Reserved for local use
- qtx - Reserved for local use
- qty - Reserved for local use
- qua - Quapaw
- qub - Huallaga Huánuco Quechua
- quc - Kiche, Central
- qud - Calderón Highland Quichua
- que - Quechua-Sprache
- quf - Lambayeque Quechua
- qug - Chimborazo Highland Quichua
- quh - South Bolivian Quechua
- qui - Quileute
- quj - Kiche, Joyabaj
- quk - Chachapoyas Quechua
- qul - North Bolivian Quechua
- qum - Sipacapense
- qun - Quinault
- qup - Southern Pastaza Quechua
- quq - Quinqui
- qur - Yanahuanca Pasco Quechua
- qus - Santiago del Estero Quichua
- qut - Kiche, West Central
- quu - Kiche, Eastern
- quv - Sacapulteco
- quw - Tena Lowland Quichua
- qux - Yauyos Quechua
- quy - Ayacucho Quechua
- quz - Cusco Quechua
- qva - Ambo-Pasco Quechua
- qvc - Cajamarca Quechua
- qve - Eastern Apurímac Quechua
- qvh - Huamalíes-Dos de Mayo Huánuco Quechua
- qvi - Imbabura Highland Quichua
- qvj - Loja Highland Quichua
- qvl - Cajatambo North Lima Quechua
- qvm - Margos-Yarowilca-Lauricocha Quechua
- qvn - North Junín Quechua
- qvo - Napo Lowland Quechua
- qvp - Pacaraos Quechua
- qvs - San Martín Quechua
- qvw - Huaylla Wanca Quechua
- qvy - Queyu
- qvz - Northern Pastaza Quichua
- qwa - Corongo Ancash Quechua
- qwc - Classical Quechua
- qwh - Huaylas Ancash Quechua
- qwm - Kuman (Russia)
- qws - Sihuas Ancash Quechua
- qwt - Kwalhioqua-Tlatskanai
- qxa - Chiquián Ancash Quechua
- qxc - Chincha Quechua
- qxh - Panao Huánuco Quechua
- qxi - Kiche, San Andrés
- qxl - Salasaca Highland Quichua
- qxn - Northern Conchucos Ancash Quechua
- qxo - Southern Conchucos Ancash Quechua
- qxp - Puno Quechua
- qxq - Qashqa'i
- qxr - Cañar Highland Quichua
- qxs - Southern Qiang
- qxt - Santa Ana de Tusi Pasco Quechua
- qxu - Arequipa-La Unión Quechua
- qxw - Jauja Wanca Quechua
- qya - Quenya
- qyp - Quiripi
- raa - Dungmali
- rab - Camling
- rac - Rasawa
- rad - Rade
- raf - Meohang, Western
- rag - Logooli
- rah - Rabha
- rai - Ramoaaina
- raj - Rājasthānī
- rak - Tulu-Bohuai
- ral - Ralte
- ram - Canela
- ran - Riantana
- rao - Rao
- rap - Osterinsel-Sprache
- raq - Saam
- rar - Rarotonganisch
- ras - Tegali
- rat - Razajerdi
- rau - Raute
- rav - Sampang
- raw - Rawang
- rax - Rang
- ray - Rapa
- raz - Rahambuu
- rbb - Rumai Palaung
- rcf - Réunion Creole French
- rdb - Rudbari
- rea - Rerau
- reb - Rembong
- ree - Kayan, Rejang
- reg - Kara
- rei - Reli
- rej - Rejang
- rel - Rendille
- rem - Remo
- ren - Rengao
- rer - Rer Bare
- res - Reshe
- ret - Retta
- rey - Reyesano
- rga - Roria
- rge - Romano-Greek
- rgk - Rangkas
- rgn - Romagnol
- rgr - Resígaro
- rgs - Southern Roglai
- rgu - Ringgou
- rhg - Rohingya
- rhp - Yahang
- ria - Riang (India)
- rie - Rien
- rif - Tarifit
- ril - Riang (Myanmar)
- rim - Nyaturu
- rin - Nungu
- rir - Ribun
- rit - Ritarungo
- riu - Riung
- rjg - Rajong
- rji - Raji
- rjs - Rajbanshi
- rka - Kraol
- rkb - Rikbaktsa
- rkh - Rakahanga-Manihiki
- rki - Rakhine
- rkm - Marka
- rkt - Rangpuri
- rma - Rama
- rmb - Rembarunga
- rmc - Carpathian Romani
- rmd - Traveller Danish
- rme - Angloromani
- rmf - Kalo Finnish Romani
- rmg - Norwegian, Traveller
- rmh - Murkim
- rmi - Lomavren
- rmk - Romkun
- rml - Baltic Romani
- rmm - Roma
- rmn - Balkan Romani
- rmo - Sinte Romani
- rmp - Rempi
- rmr - Caló
- rms - Romanian Sign Language
- rmt - Domari
- rmu - Tavringer Romani
- rmv - Romanova
- rmw - Welsh Romani
- rmx - Romam
- rmy - Vlax Romani
- rmz - Marma
- rna - Runa
- rnd - Ruund
- rng - Ronga
- rnl - Ranglong
- rnn - Roon
- rnp - Rongpo
- rnw - Rungwa
- rob - Tae'
- roc - Cacgia Roglai
- rod - Rogo
- roe - Ronji
- rof - Rombo
- rog - Northern Roglai
- roh - Rätoromanisch
- rol - Romblomanon
- ron - Rumänisch
- roo - Rotokas
- rop - Kriol
- ror - Rongga
- rou - Runga
- row - Dela-Oenale
- rpn - Repanbitip
- rpt - Rapting
- rri - Ririo
- rro - Waima
- rsb - Romano-Serbian
- rsi - Rennellese Sign Language
- rsl - Russian Sign Language
- rth - Ratahan
- rtm - Rotuman
- rtw - Rathawi
- rub - Gungu
- ruc - Ruuli
- rue - Rusyn
- ruf - Luguru
- rug - Roviana
- ruh - Ruga
- rui - Rufiji
- ruk - Che
- run - Rundi-Sprache
- ruo - Istro Romanian
- rup - Aromunisch
- ruq - Megleno Romanian
- rus - Russisch
- rut - Rutul
- ruu - Lobu, Lanas
- ruy - Mala
- ruz - Ruma
- rwa - Rawo
- rwk - Rwa
- rwm - Amba
- rwo - Rawa
- rwr - Marwari (India)
- ryn - Amami-Oshima, Northern
- rys - Yaeyama
- ryu - Central Okinawan
- saa - Saba
- sab - Buglere
- sac - Mesquakie
- sad - Sandawe-Sprache
- sae - Sabanê
- saf - Safaliba
- sag - Sango-Sprache
- sah - Jakutisch
- saj - Sahu
- sak - Sake
- sam - Samaritanisch
- san - Sanskrit
- sao - Sause
- sap - Sanapaná
- saq - Samburu
- sar - Saraveca
- sas - Sasak
- sat - Santālī
- sau - Saleman
- sav - Saafi-Saafi
- saw - Sawi
- sax - Sa
- say - Saya
- saz - Saurashtra
- sba - Ngambay
- sbb - Simbo
- sbc - Kele
- sbd - Southern Samo
- sbe - Saliba
- sbf - Shabo
- sbg - Seget
- sbh - Sori-Harengan
- sbi - Seti
- sbj - Surbakhal
- sbk - Safwa
- sbl - Botolan Sambal
- sbm - Sagala
- sbn - Sindhi Bhil
- sbo - Sabüm
- sbp - Sangu (Tanzania)
- sbq - Sileibi
- sbr - Sembakung Murut
- sbs - Subiya
- sbt - Kimki
- sbu - Stod Bhoti
- sbv - Sabine
- sbw - Simba
- sbx - Seberuang
- sby - Soli
- sbz - Sara Kaba
- sca - Sansu
- scb - Chut
- sce - Dongxiang
- scf - San Miguel Creole French
- scg - Sanggau
- sch - Sakachep
- sci - Sri Lankan Creole Malay
- sck - Sadri
- scl - Shina
- scn - Sizilianisch
- sco - Schottisch
- scp - Helambu Sherpa
- scq - Sa'och
- scs - North Slavey
- scu - Shumcho
- scv - Sheni
- scw - Sha
- scx - Sicel
- sda - Toraja-Sa'dan
- sdb - Shabak
- sdc - Sassarese Sardinian
- sde - Surubu
- sdf - Sarli
- sdg - Savi
- sdh - Southern Kurdish
- sdj - Suundi
- sdk - Sos Kundi
- sdl - Saudi Arabian Sign Language
- sdm - Semandang
- sdn - Gallurese Sardinian
- sdo - Bukar Sadong
- sdp - Sherdukpen
- sdr - Oraon Sadri
- sds - Sened
- sdt - Shuadit
- sdu - Sarudu
- sdx - Sibu Melanau
- sdz - Sallands
- sea - Semai
- seb - Shempire Senoufo
- sec - Sechelt
- sed - Sedang
- see - Seneca
- sef - Cebaara Senoufo
- seg - Segeju
- seh - Sena
- sei - Seri
- sej - Sene
- sek - Sekani
- sel - Selkupisch
- sen - Nanerigé Sénoufo
- seo - Suarmin
- sep - Sìcìté Sénoufo
- seq - Senara Sénoufo
- ser - Serrano
- ses - Koyraboro Senni Songhai
- set - Sentani
- seu - Serui-Laut
- sev - Nyarafolo Senoufo
- sew - Sewa Bay
- sey - Secoya
- sez - Chin, Senthang
- sfb - Langue des signes de Belgique Francophone
- sfm - Small Flowery Miao
- sfs - South African Sign Language
- sfw - Sehwi
- sga - Altirisch
- sgb - Ayta, Mag-Anchi
- sgc - Kipsigis
- sge - Segai
- sgg - Swiss-German Sign Language
- sgh - Shughni
- sgi - Suga
- sgk - Sangkong
- sgl - Sanglechi-Ishkashimi
- sgm - Singa
- sgo - Songa
- sgp - Singpho
- sgr - Sangisari
- sgt - Brokpake
- sgu - Salas
- sgw - Sebat Bet Gurage
- sgx - Sierra Leone Sign Language
- sgz - Sursurunga
- sha - Shall-Zwall
- shb - Ninam
- shc - Sonde
- she - Sheko
- shg - Shua
- shh - Shoshoni
- shi - Tachelhit
- shj - Shatt
- shk - Shilluk
- shl - Shendu
- shm - Shahrudi
- shn - Schan-Sprache
- sho - Shanga
- shp - Shipibo-Conibo
- shq - Sala
- shr - Shi
- shs - Shuswap
- sht - Shasta
- shu - Arabic, Chadian Spoken
- shv - Shehri
- shw - Shwai
- shx - She
- shy - Tachawit
- shz - Syenara Senoufo
- sia - Akkala Sami
- sib - Kenyah, Sebob
- sic - Malinguat
- sid - Sidamo-Sprache
- sie - Simaa
- sif - Siamou
- sig - Paasaal
- sih - Zire
- sii - Shom Peng
- sij - Numbami
- sik - Sikiana
- sil - Tumulung Sisaala
- sim - Mende
- sin - Singhalesisch
- sip - Sikkimese
- siq - Sonia
- sir - Siri
- sis - Siuslaw
- siu - Sinagen
- siv - Sumariup
- siw - Siwai
- six - Sumau
- siy - Sivandi
- siz - Siwi
- sja - Epena
- sjb - Sajau Basap
- sjd - Kildin Sami
- sje - Pite Sami
- sjg - Assangori
- sjk - Kemi Sami
- sjl - Sajalong
- sjm - Mapun
- sjn - Sindarin
- sjo - Xibe
- sjp - Surjapuri
- sjr - Siar-Lak
- sjs - Senhaja De Srair
- sjt - Ter Sami
- sju - Ume Sami
- sjw - Shawnee
- ska - Skagit
- skb - Saek
- skc - Sauk
- skd - Miwok, Southern Sierra
- ske - Seke (Vanuatu)
- skf - Sakirabiá
- skg - Sakalava Malagasy
- skh - Sikule
- ski - Sika
- skj - Seke (Nepal)
- skk - Sok
- skm - Sakam
- skn - Kolibugan Subanon
- sko - Seko Tengah
- skp - Sekapan
- skq - Sininkere
- skr - Seraiki
- sks - Maia
- skt - Sakata
- sku - Sakao
- skv - Skou
- skw - Skepi Creole Dutch
- skx - Seko Padang
- sky - Sikaiana
- skz - Sekar
- slc - Sáliba
- sld - Sissala
- sle - Sholaga
- slf - Swiss-Italian Sign Language
- slg - Selungai Murut
- slh - Southern Puget Sound Salish
- sli - Lower Silesian
- slj - Salumá
- slk - Slowakisch
- sll - Salt-Yui
- slm - Pangutaran Sama
- sln - Salinan
- slp - Lamaholot
- slq - Salchuq
- slr - Salar
- sls - Singapore Sign Language
- slt - Sila
- slu - Selaru
- slv - Slowenisch
- slw - Sialum
- slx - Salampasu
- sly - Selayar
- slz - Maya
- sma - Südsaamisch
- smb - Simbari
- smc - Som
- smd - Sama
- sme - Nordsaamisch
- smf - Auwe
- smg - Simbali
- smh - Samei
- smj - Lulesaamisch
- smk - Bolinao
- sml - Central Sama
- smm - Musasa
- smn - Inarisaamisch
- smo - Samoanisch
- smp - Samaritan
- smq - Samo
- smr - Simeulue
- sms - Skoltsaamisch
- smt - Simte
- smu - Somray
- smv - Samvedi
- smw - Sumbawa
- smx - Samba
- smy - Semnani
- smz - Simeku
- sna - Schona-Sprache
- snb - Sebuyau
- snc - Sinaugoro
- snd - Sindhi-Sprache
- sne - Jagoi
- snf - Noon
- sng - Sanga (Democratic Republic of Congo)
- snh - Shinabo
- sni - Sensi
- snj - Riverain Sango
- snk - Soninke-Sprache
- snl - Sangil
- snm - Madi, Southern
- snn - Siona
- sno - Snohomish
- snp - Siane
- snq - Sangu (Gabon)
- snr - Sihan
- sns - South West Bay
- snu - Senggi
- snv - Sa'ban
- snw - Selee
- snx - Sam
- sny - Saniyo-Hiyewe
- snz - Sinsauru
- soa - Thai Song
- sob - Sobei
- soc - So (Democratic Republic of Congo)
- sod - Songoora
- soe - Songomeno
- sog - Sogdisch
- soh - Aka
- soi - Sonha
- soj - Soi
- sok - Sokoro
- sol - Solos
- som - Somali
- soo - Songo
- sop - Songe
- soq - Kanasi
- sor - Somrai
- sos - Seeku
- sot - Süd-Sotho-Sprache
- sou - Southern Thai
- sov - Sonsorol
- sow - Sowanda
- sox - So (Cameroon)
- soy - Miyobe
- soz - Temi
- spa - Spanisch
- spb - Sepa (Indonesia)
- spc - Sapé
- spd - Saep
- spe - Sepa (Papua New Guinea)
- spg - Sian
- spi - Saponi
- spk - Sengo
- spl - Selepet
- spm - Sepen
- spo - Spokane
- spp - Supyire Senoufo
- spq - Loreto-Ucayali Spanish
- spr - Saparua
- sps - Saposa
- spt - Spiti Bhoti
- spu - Sapuan
- spx - South Picene
- spy - Sabaot
- sqa - Shama-Sambuga
- sqh - Shau
- sqi - Albanisch
- sqm - Suma
- sqn - Susquehannock
- sqo - Sorkhei
- sqq - Sou
- sqr - Siculo Arabic
- sqs - Sri Lankan Sign Language
- sqt - Soqotri
- squ - Squamish
- sra - Saruga
- srb - Sora
- src - Logudorese Sardinian
- srd - Sardisch
- sre - Sara
- srf - Nafi
- srg - Sulod
- srh - Sarikoli
- sri - Siriano
- srk - Serudung Murut
- srl - Isirawa
- srm - Saramaccan
- srn - Sranantongo
- sro - Campidanese Sardinian
- srp - Serbisch
- srq - Sirionó
- srr - Serer-Sprache
- srs - Sarsi
- srt - Sauri
- sru - Suruí
- srv - Waray Sorsogon
- srw - Serua
- srx - Sirmauri
- sry - Sera
- srz - Shahmirzadi
- ssb - Southern Sama
- ssc - Suba-Simbiti
- ssd - Siroi
- sse - Balangingi
- ssf - Thao
- ssg - Seimat
- ssh - Arabic, Shihhi Spoken
- ssi - Sansi
- ssj - Sausi
- ssk - Sunam
- ssl - Western Sisaala
- ssm - Semnam
- ssn - Waata
- sso - Sissano
- ssp - Spanish Sign Language
- ssq - So'a
- ssr - Swiss-French Sign Language
- sss - Sô
- sst - Sinasina
- ssu - Susuami
- ssv - Shark Bay
- ssw - Swasi-Sprache
- ssx - Samberigi
- ssy - Saho
- ssz - Sengseng
- sta - Settla
- stb - Northern Subanen
- std - Sentinel
- ste - Liana-Seti
- stf - Seta
- stg - Trieng
- sth - Shelta
- sti - Bulo Stieng
- stj - Matya Samo
- stk - Arammba
- stl - Stellingwerfs
- stm - Setaman
- stn - Owa
- sto - Stoney
- stp - Southeastern Tepehuan
- stq - Saterfriesisch
- str - Straits Salish
- sts - Shumashti
- stt - Budeh Stieng
- stu - Samtao
- stv - Silt'e
- stw - Satawalese
- sua - Sulka
- sub - Suku
- suc - Western Subanon
- sue - Suena
- sug - Suganga
- sui - Suki
- suj - Shubi
- suk - Sukuma-Sprache
- sul - Surigaonon
- sum - Sumo-Mayangna
- sun - Sundanesisch
- suq - Suri
- sur - Mwaghavul
- sus - Susu
- sut - Subtiaba
- suv - Sulung
- suw - Sumbwa
- sux - Sumerisch
- suy - Suyá
- suz - Sunwar
- sva - Svan
- svb - Ulau-Suain
- svc - Vincentian Creole English
- sve - Serili
- svk - Slovakian Sign Language
- svr - Savara
- svs - Savosavo
- svx - Skalvian
- swa - Swahili
- swb - Comorian
- swc - Congo Swahili
- swe - Schwedisch
- swf - Sere
- swg - Swabian
- swh - Swahili (individual language)
- swi - Sui
- swj - Sira
- swk - Malawi Sena
- swl - Swedish Sign Language
- swm - Samosa
- swn - Sawknah
- swo - Shanenawa
- swp - Suau
- swq - Sharwa
- swr - Saweru
- sws - Seluwasan
- swt - Sawila
- swu - Suwawa
- swv - Shekhawati
- sww - Sowa
- swx - Suruahá
- swy - Sarua
- sxb - Suba
- sxc - Sicanian
- sxe - Sighu
- sxg - Shixing
- sxk - Southern Kalapuya
- sxl - Selian
- sxm - Samre
- sxn - Sangir
- sxo - Sorothaptic
- sxr - Saaroa
- sxs - Sasaru
- sxu - Upper Saxon
- sxw - Gbe, Saxwe
- sya - Siang
- syb - Central Subanen
- syc - Syrisch
- syi - Seki
- syk - Sukur
- syl - Sylheti
- sym - Maya Samo
- syn - Senaya
- syo - Suoy
- syr - Neuostaramäisch
- sys - Sinyar
- syw - Kagate
- syy - Al-Sayyid Bedouin Sign Language
- sza - Semelai
- szb - Ngalum
- szc - Semaq Beri
- szd - Seru
- sze - Seze
- szg - Sengele
- szl - Silesian
- szn - Sula
- szp - Suabo
- szv - Isu
- szw - Sawai
- taa - Lower Tanana
- tab - Tabassaran
- tac - Lowland Tarahumara
- tad - Tause
- tae - Tariana
- taf - Tapirapé
- tag - Tagoi
- tah - Tahitisch
- taj - Eastern Tamang
- tak - Tala
- tal - Tal
- tam - Tamil
- tan - Tangale
- tao - Yami
- tap - Taabwa
- taq - Tamasheq
- tar - Central Tarahumara
- tas - Tay Boi
- tat - Tatarisch
- tau - Upper Tanana
- tav - Tatuyo
- taw - Tai
- tax - Tamki
- tay - Atayal
- taz - Tocho
- tba - Aikanã
- tbb - Tapeba
- tbc - Takia
- tbd - Kaki Ae
- tbe - Tanimbili
- tbf - Mandara
- tbg - North Tairora
- tbh - Thurawal
- tbi - Gaam
- tbj - Tiang
- tbk - Calamian Tagbanwa
- tbl - Tboli
- tbm - Tagbu
- tbn - Barro Negro Tunebo
- tbo - Tawala
- tbp - Taworta
- tbr - Tumtum
- tbs - Tanguat
- tbt - Tembo (Kitembo)
- tbu - Tubar
- tbv - Tobo
- tbw - Tagbanwa
- tbx - Kapin
- tby - Tabaru
- tbz - Ditammari
- tca - Ticuna
- tcb - Tanacross
- tcc - Datooga
- tcd - Tafi
- tce - Southern Tutchone
- tcf - Malinaltepec Me'phaa
- tcg - Tamagario
- tch - Turks And Caicos Creole English
- tci - Wára
- tck - Tchitchege
- tcl - Taman (Myanmar)
- tcm - Tanahmerah
- tcn - Tichurong
- tco - Taungyo
- tcp - Chin, Tawr
- tcq - Kaiy
- tcs - Torres Strait Creole
- tct - T'en
- tcu - Southeastern Tarahumara
- tcw - Tecpatlán Totonac
- tcx - Toda
- tcy - Tulu
- tcz - Chin, Thado
- tda - Tagdal
- tdb - Panchpargania
- tdc - Emberá-Tadó
- tdd - Tai Nüa
- tdf - Talieng
- tdg - Western Tamang
- tdh - Thulung
- tdi - Tomadino
- tdj - Tajio
- tdk - Tambas
- tdl - Sur
- tdn - Tondano
- tdo - Teme
- tdq - Tita
- tdr - Todrah
- tds - Doutai
- tdt - Tetun Dili
- tdu - Dusun, Tempasuk
- tdv - Toro
- tdx - Tandroy-Mahafaly Malagasy
- tdy - Tadyawan
- tea - Temiar
- teb - Tetete
- tec - Terik
- ted - Krumen, Tepo
- tee - Huehuetla Tepehua
- tef - Teressa
- teg - Teke-Tege
- teh - Tehuelche
- tei - Torricelli
- tek - Ibali Teke
- tel - Telugu-Sprache
- tem - Temne-Sprache
- ten - Tama (Colombia)
- teo - Teso
- tep - Tepecano
- teq - Temein
- ter - Tereno-Sprache
- tes - Tengger
- tet - Tetum-Sprache
- teu - Soo
- tev - Teor
- tew - Tewa (USA)
- tex - Tennet
- tey - Tulishi
- tfi - Gbe, Tofin
- tfn - Tanaina
- tfo - Tefaro
- tfr - Teribe
- tft - Ternate
- tga - Sagalla
- tgb - Tobilung
- tgc - Tigak
- tgd - Ciwogai
- tge - Eastern Gorkha Tamang
- tgf - Chalikha
- tgg - Tangga
- tgh - Tobagonian Creole English
- tgi - Lawunuia
- tgk - Tadschikisch
- tgl - Tagalog
- tgo - Sudest
- tgp - Tangoa
- tgq - Tring
- tgr - Tareng
- tgs - Nume
- tgt - Central Tagbanwa
- tgu - Tanggu
- tgv - Tingui-Boto
- tgw - Tagwana Senoufo
- tgx - Tagish
- tgy - Togoyo
- tha - Thailändisch
- thc - Tai Hang Tong
- thd - Thayore
- the - Chitwania Tharu
- thf - Thangmi
- thh - Northern Tarahumara
- thi - Tai Long
- thk - Tharaka
- thl - Dangaura Tharu
- thm - Aheu
- thn - Thachanadan
- thp - Thompson
- thq - Kochila Tharu
- thr - Rana Tharu
- ths - Thakali
- tht - Tahltan
- thu - Thuri
- thv - Tahaggart Tamahaq
- thw - Thudam
- thx - The
- thy - Tha
- thz - Tayart Tamajeq
- tia - Tidikelt Tamazight
- tic - Tira
- tid - Tidong
- tie - Tingal
- tif - Tifal
- tig - Tigre-Sprache
- tih - Timugon Murut
- tii - Tiene
- tij - Tilung
- tik - Tikar
- til - Tillamook
- tim - Timbe
- tin - Tindi
- tio - Teop
- tip - Trimuris
- tiq - Tiéfo
- tir - Tigrinja-Sprache
- tis - Itneg, Masadiit
- tit - Tinigua
- tiu - Itneg, Adasen
- tiv - Tiv-Sprache
- tiw - Tiwi
- tix - Southern Tiwa
- tiy - Tiruray
- tiz - Tai Hongjin
- tja - Tajuasohn
- tjg - Tunjung
- tji - Northern Tujia
- tjm - Timucua
- tjn - Tonjon
- tjo - Temacine Tamazight
- tjs - Southern Tujia
- tju - Tjurruru
- tka - Truká
- tkb - Buksa
- tkd - Tukudede
- tke - Takwane
- tkf - Tukumanféd
- tkk - Takpa
- tkl - Tokelauanisch
- tkm - Takelma
- tkn - Toku-No-Shima
- tkp - Tikopia
- tkq - Tee
- tkr - Tsakhur
- tks - Takestani
- tkt - Kathoriya Tharu
- tku - Upper Necaxa Totonac
- tkw - Teanu
- tkx - Tangko
- tkz - Takua
- tla - Southwestern Tepehuan
- tlb - Tobelo
- tlc - Yecuatla Totonac
- tld - Talaud
- tlf - Telefol
- tlg - Tofanma
- tlh - Klingonisch
- tli - Tlingit-Sprache
- tlj - Talinga-Bwisi
- tlk - Taloki
- tll - Tetela
- tlm - Tolomako
- tln - Talondo'
- tlo - Talodi
- tlp - Filomena Mata-Coahuitlán Totonac
- tlq - Tai Loi
- tlr - Talise
- tls - Tambotalo
- tlt - Teluti
- tlu - Tulehu
- tlv - Taliabu
- tlw - South Wemale
- tlx - Khehek
- tly - Talysh
- tma - Tama (Chad)
- tmb - Katbol
- tmc - Tumak
- tmd - Haruai
- tme - Tremembé
- tmf - Toba-Maskoy
- tmg - Ternateño
- tmh - Tamašeq
- tmi - Tutuba
- tmj - Samarokena
- tmk - Northwestern Tamang
- tml - Citak, Tamnim
- tmm - Tai Thanh
- tmn - Taman (Indonesia)
- tmo - Temoq
- tmp - Tai Mène
- tmq - Tumleo
- tmr - Jewish Babylonian Aramaic
- tms - Tima
- tmt - Tasmate
- tmu - Iau
- tmv - Tembo (Motembo)
- tmw - Temuan
- tmy - Tami
- tmz - Tamanaku
- tna - Tacana
- tnb - Western Tunebo
- tnc - Tanimuca-Retuarã
- tnd - Angosturas Tunebo
- tne - Kallahan, Tinoc
- tnf - Tangshewi
- tng - Tobanga
- tnh - Maiani
- tni - Tandia
- tnk - Kwamera
- tnl - Lenakel
- tnm - Tabla
- tnn - North Tanna
- tno - Toromono
- tnp - Whitesands
- tnq - Taino
- tnr - Budik
- tns - Tenis
- tnt - Tontemboan
- tnu - Tay Khang
- tnv - Tangchangya
- tnw - Tonsawang
- tnx - Tanema
- tny - Tongwe
- tnz - Tonga (Thailand)
- tob - Toba
- toc - Coyutla Totonac
- tod - Toma
- toe - Tomedes
- tof - Gizrra
- toh - Gitonga
- toi - Tonga (Zambia)
- toj - Tojolabal
- tol - Tolowa
- tom - Tombulu
- ton - Tongaisch
- too - Xicotepec De Juárez Totonac
- top - Papantla Totonac
- toq - Toposa
- tor - Banda, Togbo-Vara
- tos - Highland Totonac
- tou - Tho
- tov - Upper Taromi
- tow - Jemez
- tox - Tobian
- toy - Topoiyo
- toz - To
- tpa - Taupota
- tpc - Azoyú Me'phaa
- tpe - Tippera
- tpf - Tarpia
- tpg - Kula
- tpi - Neumelanesisch
- tpj - Tapieté
- tpk - Tupinikin
- tpl - Tlacoapa Me'phaa
- tpm - Tampulma
- tpn - Tupinambá
- tpo - Tai Pao
- tpp - Pisaflores Tepehua
- tpq - Tukpa
- tpr - Tuparí
- tpt - Tlachichilco Tepehua
- tpu - Tampuan
- tpv - Tanapag
- tpw - Tupí
- tpx - Acatepec Me'phaa
- tpy - Trumai
- tpz - Tinputz
- tqb - Tembé
- tql - Lehali
- tqm - Turumsa
- tqn - Tenino
- tqo - Toaripi
- tqp - Tomoip
- tqq - Tunni
- tqr - Torona
- tqt - Western Totonac
- tqu - Touo
- tqw - Tonkawa
- tra - Tirahi
- trb - Terebu
- trc - Copala Triqui
- trd - Turi
- tre - East Tarangan
- trf - Trinidadian Creole English
- trg - Lishán Didán
- trh - Turaka
- tri - Trió
- trj - Toram
- trl - Traveller Scottish
- trm - Tregami
- trn - Trinitario
- tro - Naga, Tarao
- trp - Kok Borok
- trq - San Martín Itunyoso Triqui
- trr - Taushiro
- trs - Chicahuaxtla Triqui
- trt - Tunggare
- tru - Turoyo
- trv - Taroko
- trw - Torwali
- trx - Tringgus-Sembaan Bidayuh
- try - Turung
- trz - Torá
- tsa - Tsaangi
- tsb - Tsamai
- tsc - Tswa
- tsd - Tsakonian
- tse - Tunisian Sign Language
- tsf - Southwestern Tamang
- tsg - Tausug
- tsh - Tsuvan
- tsi - Tsimshian-Sprache
- tsj - Tshangla
- tsk - Tseku
- tsl - Ts'ün-Lao
- tsm - Turkish Sign Language
- tsn - Tswana-Sprache
- tso - Tsonga-Sprache
- tsp - Northern Toussian
- tsq - Thai Sign Language
- tsr - Akei
- tss - Taiwan Sign Language
- tsu - Tsou
- tsv - Tsogo
- tsw - Tsishingini
- tsx - Mubami
- tsy - Tebul Sign Language
- tsz - Purepecha
- tta - Tutelo
- ttb - Gaa
- ttc - Tektiteko
- ttd - Tauade
- tte - Bwanabwana
- ttf - Tuotomb
- ttg - Tutong
- tth - Upper Ta'oih
- tti - Tobati
- ttj - Tooro
- ttk - Totoro
- ttl - Totela
- ttm - Northern Tutchone
- ttn - Towei
- tto - Lower Ta'oih
- ttp - Tombelala
- ttq - Tawallammat Tamajaq
- ttr - Tera
- tts - Northeastern Thai
- ttt - Muslim Tat
- ttu - Torau
- ttv - Titan
- ttw - Kenyah, Tutoh
- tty - Sikaritai
- ttz - Tsum
- tua - Wiarumus
- tub - Tübatulabal
- tuc - Mutu
- tud - Tuxá
- tue - Tuyuca
- tuf - Central Tunebo
- tug - Tunia
- tuh - Taulil
- tui - Tupuri
- tuj - Tugutil
- tuk - Turkmenisch
- tul - Tula
- tum - Tumbuka-Sprache
- tun - Tunica
- tuo - Tucano
- tuq - Tedaga
- tur - Türkisch
- tus - Tuscarora
- tuu - Tututni
- tuv - Turkana
- tux - Tuxináwa
- tuy - Tugen
- tuz - Turka
- tva - Vaghua
- tvd - Tsuvadi
- tve - Te'un
- tvk - Ambrym, Southeast
- tvl - Elliceanisch
- tvm - Tela-Masbuar
- tvn - Tavoyan
- tvo - Tidore
- tvs - Taveta
- tvt - Tutsa Naga
- tvw - Sedoa
- tvy - Timor Pidgin
- twa - Twana
- twb - Western Tawbuid
- twc - Teshenawa
- twd - Twents
- twe - Tewa (Indonesia)
- twf - Northern Tiwa
- twg - Tereweng
- twh - Tai Dón
- twi - Twi-Sprache
- twl - Tawara
- twm - Tawang Monpa
- twn - Twendi
- two - Tswapong
- twp - Ere
- twq - Tasawaq
- twr - Southwestern Tarahumara
- twt - Turiwára
- twu - Termanu
- tww - Tuwari
- twx - Tewe
- twy - Tawoyan
- txa - Tombonuo
- txb - Tokharian B
- txc - Tsetsaut
- txe - Totoli
- txg - Tangut
- txh - Thracian
- txi - Ikpeng
- txm - Tomini
- txn - West Tarangan
- txo - Toto
- txq - Tii
- txr - Tartessian
- txs - Tonsea
- txt - Citak
- txu - Kayapó
- txx - Tatana
- txy - Tanosy Malagasy
- tya - Tauya
- tye - Kyenga
- tyh - O'du
- tyi - Teke-Tsaayi
- tyj - Tai Do
- tyl - Thu Lao
- tyn - Kombai
- typ - Thaypan
- tyr - Tai Daeng
- tys - Tày Sa Pa
- tyt - Tày Tac
- tyu - Kua
- tyv - Tuwinisch
- tyx - Teke-Tyee
- tyz - Tày
- tza - Tanzanian Sign Language
- tzh - Tzeltal
- tzj - Tz'utujil
- tzm - Central Atlas Tamazight
- tzn - Tugun
- tzo - Tzotzil
- tzx - Tabriak
- uam - Uamué
- uan - Kuan
- uar - Tairuma
- uba - Ubang
- ubi - Ubi
- ubm - Kenyah, Upper Baram
- ubr - Ubir
- ubu - Umbu-Ungu
- uby - Ubykh
- uda - Uda
- ude - Udihe
- udg - Muduga
- udi - Udi
- udj - Ujir
- udl - Wuzlam
- udm - Udmurtisch
- udu - Uduk
- ues - Kioko
- ufi - Ufim
- uga - Ugaritisch
- ugb - Kuku-Ugbanh
- uge - Ughele
- ugn - Ugandan Sign Language
- ugo - Ugong
- ugy - Uruguayan Sign Language
- uha - Uhami
- uhn - Damal
- uig - Uigurisch
- uis - Uisai
- uiv - Iyive
- uji - Tanjijili
- uka - Kaburi
- ukg - Ukuriguma
- ukh - Ukhwejo
- ukl - Ukrainian Sign Language
- ukp - Ukpe-Bayobiri
- ukq - Ukwa
- ukr - Ukrainisch
- uks - Urubú-Kaapor Sign Language
- uku - Ukue
- ukw - Ukwuani-Aboh-Ndoni
- ula - Fungwa
- ulb - Ulukwumi
- ulc - Ulch
- ulf - Usku
- uli - Ulithian
- ulk - Meriam
- ull - Ullatan
- ulm - Ulumanda'
- uln - Unserdeutsch
- ulu - Uma' Lung
- uma - Umatilla
- umb - Mbundu-Sprache
- umc - Marrucinian
- umd - Umbindhamu
- umg - Umbuygamu
- umi - Ukit
- umm - Umon
- umn - Makyan Naga
- umo - Umotína
- ump - Umpila
- umr - Umbugarla
- ums - Pendau
- umu - Munsee
- una - North Watut
- une - Uneme
- ung - Ngarinyin
- unk - Enawené-Nawé
- unm - Unami
- unp - Worora
- unr - Mundari
- unx - Munda
- unz - Unde Kaili
- uok - Uokha
- upi - Umeda
- upv - Uripiv-Wala-Rano-Atchin
- ura - Urarina
- urb - Urubú-Kaapor
- urc - Urningangg
- urd - Urdu
- ure - Uru
- urf - Uradhi
- urg - Urigina
- urh - Urhobo
- uri - Urim
- urk - Urak Lawoi'
- url - Urali
- urm - Urapmin
- urn - Uruangnirin
- uro - Ura (Papua New Guinea)
- urp - Uru-Pa-In
- urr - Lehalurup
- urt - Urat
- uru - Urumi
- urv - Uruava
- urw - Sop
- urx - Urimo
- ury - Orya
- urz - Uru-Eu-Wau-Wau
- usa - Usarufa
- ush - Ushojo
- usi - Usui
- usk - Usaghade
- usp - Uspanteco
- usu - Uya
- uta - Otank
- ute - Ute-Southern Paiute
- utp - Amba
- utr - Etulo
- utu - Utu
- uum - Urum
- uun - Kulon-Pazeh
- uur - Ura (Vanuatu)
- uuu - U
- uve - West Uvean
- uvh - Uri
- uvl - Lote
- uwa - Kuku-Uwanh
- uya - Doko-Uyanga
- uzb - Usbekisch
- uzn - Northern Uzbek
- uzs - Southern Uzbek
- vaa - Vaagri Booli
- vae - Vale
- vaf - Vafsi
- vag - Vagla
- vah - Varhadi-Nagpuri
- vai - Vai-Sprache
- vaj - Vasekela Bushman
- val - Vehes
- vam - Vanimo
- van - Valman
- vao - Vao
- vap - Vaiphei
- var - Huarijio
- vas - Vasavi
- vau - Vanuma
- vav - Varli
- vay - Wayu
- vbb - Babar, Southeast
- vec - Venetian
- ved - Veddah
- vel - Veluws
- vem - Vemgo-Mabas
- ven - Venda-Sprache
- veo - Ventureño
- vep - Veps
- ver - Mom Jango
- vgr - Vaghri
- vgt - Vlaamse Gebarentaal
- vic - Virgin Islands Creole English
- vid - Vidunda
- vie - Vietnamesisch
- vif - Vili
- vig - Viemo
- vil - Vilela
- vin - Vinza
- vis - Vishavan
- vit - Viti
- viv - Iduna
- vka - Kariyarra
- vki - Ija-Zuba
- vkj - Kujarge
- vkk - Kaur
- vkl - Kulisusu
- vkm - Kamakan
- vko - Kodeoha
- vkp - Korlai Creole Portuguese
- vkt - Malay, Tenggarong Kutai
- vku - Kurrama
- vky - Kayu Agung
- vlp - Valpei
- vls - Vlaams
- vma - Martuyhunira
- vmb - Mbabaram
- vmc - Mixtec, Juxtlahuaca
- vmd - Koraga, Mudu
- vme - Masela, East
- vmf - Mainfränkisch
- vmg - Minigir
- vmh - Maraghei
- vmi - Miwa
- vmj - Mixtec, Ixtayutla
- vmk - Makhuwa-Shirima
- vml - Malgana
- vmm - Mixtec, Mitlatongo
- vmo - Muko-Muko
- vmp - Mazatec, Soyaltepec
- vmq - Mixtec, Soyaltepec
- vmr - Marenje
- vms - Moksela
- vmu - Muluridyi
- vmv - Maidu, Valley
- vmw - Makhuwa
- vmx - Mixtec, Tamazola
- vmy - Mazatec, Ayautla
- vmz - Mazatec, Mazatlán
- vnk - Vano
- vnm - Vinmavis
- vnp - Vunapu
- vol - Volapük
- vor - Voro
- vot - Wotisch
- vra - Vera'a
- vro - Võro
- vrs - Varisi
- vrt - Burmbar
- vsi - Moldova Sign Language
- vsl - Venezuelan Sign Language
- vsv - Valencian Sign Language
- vto - Vitou
- vum - Vumbu
- vun - Vunjo
- vut - Vute
- vwa - Awa (China)
- waa - Walla Walla
- wab - Wab
- wac - Wasco-Wishram
- wad - Wandamen
- wae - Walser
- waf - Wakoná
- wag - Wa'ema
- wah - Watubela
- wai - Wares
- waj - Waffa
- wal - Walamo-Sprache
- wam - Wampanoag
- wan - Wan
- wao - Wappo
- wap - Wapishana
- waq - Wageman
- war - Waray
- was - Washo-Sprache
- wat - Kaninuwa
- wau - Waurá
- wav - Waka
- waw - Waiwai
- wax - Watam
- way - Wayana
- waz - Wampur
- wba - Warao
- wbb - Wabo
- wbe - Waritai
- wbf - Wara
- wbh - Wanda
- wbi - Vwanji
- wbj - Alagwa
- wbk - Waigali
- wbl - Wakhi
- wbm - Wa
- wbp - Warlpiri
- wbq - Waddar
- wbr - Wagdi
- wbt - Wanman
- wbv - Wajarri
- wbw - Woi
- wca - Yanomámi
- wci - Gbe, Waci
- wdd - Wandji
- wdg - Wadaginam
- wdj - Wadjiginy
- wdu - Wadjigu
- wea - Wewaw
- wec - Wè Western
- wed - Wedau
- weh - Weh
- wei - Were
- wem - Gbe, Weme
- weo - North Wemale
- wep - Westphalien
- wer - Weri
- wes - Cameroon Pidgin
- wet - Perai
- weu - Welaung
- wew - Wejewa
- wfg - Yafi
- wga - Wagaya
- wgg - Wangganguru
- wgi - Wahgi
- wgo - Waigeo
- wgw - Wagawaga
- wgy - Warrgamay
- wha - Manusela
- whg - North Wahgi
- whk - Kenyah, Wahau
- whu - Kayan, Wahau
- wib - Southern Toussian
- wic - Wichita
- wie - Wik-Epa
- wif - Wik-Keyangan
- wig - Wik-Ngathana
- wih - Wik-Me'anha
- wii - Minidien
- wij - Wik-Iiyanh
- wik - Wikalkan
- wil - Wilawila
- wim - Wik-Mungkan
- win - Ho-Chunk
- wir - Wiraféd
- wit - Wintu
- wiu - Wiru
- wiv - Muduapa
- wiw - Wirangu
- wiy - Wiyot
- wja - Waja
- wji - Warji
- wka - Kwadza
- wkb - Kumbaran
- wkd - Wakde
- wkl - Kalanadi
- wku - Kunduvadi
- wkw - Wakawaka
- wla - Walio
- wlc - Mwali Comorian
- wle - Wolane
- wlg - Kunbarlang
- wli - Waioli
- wlk - Wailaki
- wll - Wali (Sudan)
- wlm - Middle Welsh
- wln - Wallonisch
- wlo - Wolio
- wlr - Wailapa
- wls - Wallisian
- wlu - Wuliwuli
- wlv - Wichí Lhamtés Vejoz
- wlw - Walak
- wlx - Wali (Ghana)
- wly - Waling
- wma - Mawa
- wmb - Wambaya
- wmc - Wamas
- wmd - Mamaindé
- wme - Wambule
- wmh - Waima'a
- wmi - Wamin
- wmm - Maiwa
- wmn - Waamwang
- wmo - Wom (Papua New Guinea)
- wms - Wambon
- wmt - Walmajarri
- wmw - Mwani
- wmx - Womo
- wnb - Wanambre
- wnc - Wantoat
- wnd - Wandarang
- wne - Waneci
- wng - Wanggom
- wni - Ndzwani Comorian
- wnk - Wanukaka
- wnm - Wanggamala
- wno - Wano
- wnp - Wanap
- wnu - Usan
- woa - Tyaraity
- wob - Wè Northern
- woc - Wogeo
- wod - Wolani
- woe - Woleaian
- wof - Gambian Wolof
- wog - Wogamusin
- woi - Kamang
- wok - Longto
- wol - Wolof-Sprache
- wom - Wom (Nigeria)
- won - Wongo
- woo - Manombai
- wor - Woria
- wos - Hanga Hundi
- wow - Wawonii
- woy - Weyto
- wpc - Maco
- wra - Warapu
- wrb - Warluwara
- wrd - Warduji
- wrg - Warungu
- wrh - Wiradhuri
- wri - Wariyangga
- wrl - Warlmanpa
- wrm - Warumungu
- wrn - Warnang
- wrp - Waropen
- wrr - Wardaman
- wrs - Waris
- wru - Waru
- wrv - Waruna
- wrw - Gugu Warra
- wrx - Wae Rana
- wry - Merwari
- wrz - Waray (Australia)
- wsa - Warembori
- wsi - Wusi
- wsk - Waskia
- wsr - Owenia
- wss - Wasa
- wsu - Wasu
- wsv - Wotapuri-Katarqalai
- wtf - Dumpu
- wti - Berta
- wtk - Watakataui
- wtm - Mewati
- wtw - Wotu
- wua - Wikngenchera
- wub - Wunambal
- wud - Wudu
- wuh - Wutunhua
- wul - Silimo
- wum - Wumbvu
- wun - Bungu
- wur - Wurrugu
- wut - Wutung
- wuu - Chinese, Wu
- wuv - Wuvulu-Aua
- wux - Wulna
- wuy - Wauyai
- wwa - Waama
- wwo - Wetamut
- wwr - Warrwa
- www - Wawa
- wxa - Waxianghua
- wya - Wyandot
- wyb - Wangaaybuwan-Ngiyambaa
- wym - Wymysorys
- wyr - Wayoró
- wyy - Fijian, Western
- xaa - Andalusian Arabic
- xab - Sambe
- xac - Kachari
- xad - Adai
- xae - Aequian
- xag - Aghwan
- xah - Kahayan
- xai - Kaimbé
- xal - Kalmückisch
- xam - |Xam
- xan - Xamtanga
- xao - Khao
- xap - Apalachee
- xaq - Aquitanian
- xar - Karami
- xas - Kamas
- xat - Katawixi
- xau - Kauwera
- xav - Xavánte
- xaw - Kawaiisu
- xay - Kayan Mahakam
- xba - Kamba
- xbc - Bactrian
- xbi - Kombio
- xbm - Middle Breton
- xbo - Bolgarian
- xbr - Kambera
- xbw - Kambiwá
- xbx - Kabixí
- xcb - Cumbric
- xcc - Camunic
- xce - Celtiberian
- xcg - Cisalpine Gaulish
- xch - Chemakum
- xcl - Classical Armenian
- xcm - Comecrudo
- xcn - Cotoname
- xco - Chorasmian
- xcr - Carian
- xct - Classical Tibetan
- xcu - Curonian
- xcv - Chuvantsy
- xcw - Coahuilteco
- xcy - Cayuse
- xdc - Dacian
- xdm - Edomite
- xdy - Malayic Dayak
- xeb - Eblan
- xed - Hdi
- xeg - ||Xegwi
- xel - Kelo
- xem - Kembayan
- xep - Epi-Olmec
- xer - Xerénte
- xes - Kesawai
- xet - Xetá
- xeu - Keuru
- xfa - Faliscan
- xga - Galatian
- xgf - Gabrielino-Fernandeño
- xgl - Galindan
- xgr - Garza
- xha - Harami
- xhc - Hunnic
- xhd - Hadrami
- xhe - Khetrani
- xho - Xhosa-Sprache
- xhr - Hernican
- xht - Hattic
- xhu - Hurrian
- xhv - Khua
- xia - Xiandao
- xib - Iberian
- xii - Xiri
- xil - Illyrian
- xin - Xinca
- xip - Xipináwa
- xir - Xiriâna
- xiv - Indus Valley Language
- xiy - Xipaya
- xka - Kalkoti
- xkb - Ede Nago, Manigri-Kambolé
- xkc - Khoini
- xkd - Kayan, Mendalam
- xke - Kereho-Uheng
- xkf - Khengkha
- xkg - Kagoro
- xkh - Karahawyana
- xki - Kenyan Sign Language
- xkj - Kajali
- xkk - Kaco
- xkl - Kenyah, Kelinyau
- xkm - Kenyah, Mahakam
- xkn - Kayan, Kayan River
- xko - Kiorr
- xkp - Kabatei
- xkq - Koroni
- xkr - Xakriabá
- xks - Kumbewaha
- xkt - Kantosi
- xku - Kaamba
- xkv - Kgalagadi
- xkw - Kembra
- xkx - Karore
- xky - Kenyah, Western
- xkz - Kurtokha
- xla - Kamula
- xlb - Loup B
- xlc - Lycian
- xld - Lydian
- xle - Lemnian
- xlg - Ligurian (Ancient)
- xli - Liburnian
- xln - Alanic
- xlo - Loup A
- xlp - Lepontic
- xls - Lusitanian
- xlu - Cuneiform Luwian
- xly - Elymian
- xma - Mushungulu
- xmb - Mbonga
- xmc - Makhuwa-Marrevone
- xmd - Mbedam
- xme - Median
- xmf - Mingrelian
- xmg - Mengaka
- xmh - Kuku-Muminh
- xmi - Miarrã
- xmj - Majera
- xmk - Ancient Macedonian
- xml - Malaysian Sign Language
- xmm - Malay, Manado
- xmn - Manichaean Middle Persian
- xmo - Morerebi
- xmp - Kuku-Muinh
- xmq - Kuku-Mangk
- xmr - Meroitic
- xms - Moroccan Sign Language
- xmt - Matbat
- xmu - Kamu
- xmv - Malagasy, Antankarana
- xmw - Malagasy, Tsimihety
- xmx - Maden
- xmy - Mayaguduna
- xmz - Mori Bawah
- xna - Ancient North Arabian
- xnb - Kanakanabu
- xng - Middle Mongolian
- xnh - Kuanhua
- xnn - Kankanay, Northern
- xno - Anglo-Norman
- xnr - Kangri
- xns - Kanashi
- xoc - O'chi'chi'
- xod - Kokoda
- xog - Soga
- xoi - Kominimung
- xok - Xokleng
- xom - Komo
- xon - Konkomba
- xoo - Xukurú
- xop - Kopar
- xor - Korubo
- xow - Kowaki
- xpc - Pecheneg
- xpe - Kpelle, Liberia
- xpg - Phrygian
- xpi - Pictish
- xpk - Kulina Pano
- xpm - Pumpokol
- xpn - Kapinawá
- xpo - Pochutec
- xpp - Puyo-Paekche
- xpr - Parthian
- xps - Pisidian
- xpu - Punic
- xpy - Puyo
- xqa - Karakhanid
- xqt - Qatabanian
- xra - Krahô
- xrb - Karaboro, Eastern
- xre - Kreye
- xri - Krikati-Timbira
- xrm - Armazic
- xrn - Arin
- xrr - Raetic
- xrt - Aranama-Tamique
- xru - Marriammu
- xrw - Karawa
- xsa - Sabaean
- xsb - Tinà Sambal
- xsc - Scythian
- xsd - Sidetic
- xse - Sempan
- xsh - Shamang
- xsi - Sio
- xsj - Subi
- xsl - South Slavey
- xsm - Kasem
- xsn - Sanga (Nigeria)
- xso - Solano
- xsp - Silopi
- xsq - Makhuwa-Saka
- xsr - Sherpa
- xss - Assan
- xsu - Sanumá
- xsv - Sudovian
- xsy - Saisiyat
- xta - Mixtec, Alcozauca
- xtb - Mixtec, Chazumba
- xtc - Katcha-Kadugli-Miri
- xtd - Mixtec, Diuxi-Tilantongo
- xte - Ketengban
- xtg - Transalpine Gaulish
- xti - Mixtec, Sinicahua
- xtj - Mixtec, San Juan Teita
- xtl - Mixtec, Tijaltepec
- xtm - Mixtec, Magdalena Peñasco
- xtn - Mixtec, Northern Tlaxiaco
- xto - Tokharian A
- xtp - Mixtec, San Miguel Piedras
- xtq - Tumshuqese
- xtr - Early Tripuri
- xts - Mixtec, Sindihui
- xtt - Mixtec, Tacahua
- xtu - Mixtec, Cuyamecalco
- xtw - Tawandê
- xty - Mixtec, Yoloxochitl
- xtz - Tasmanian
- xua - Kurumba, Alu
- xub - Kurumba, Betta
- xuf - Kunfal
- xug - Kunigami
- xuj - Kurumba, Jennu
- xum - Umbrian
- xuo - Kuo
- xup - Upper Umpqua
- xur - Urartian
- xut - Kuthant
- xuu - Kxoe
- xve - Venetic
- xvi - Kamviri
- xvn - Vandalic
- xvo - Volscian
- xvs - Vestinian
- xwa - Kwaza
- xwc - Woccon
- xwe - Gbe, Xwela
- xwg - Kwegu
- xwl - Gbe, Western Xwla
- xwo - Written Oirat
- xwr - Kwerba Mamberamo
- xxb - Boro (Ghana)
- xxk - Keo
- xxr - Koropó
- xxt - Tambora
- xyl - Yalakalore
- xzh - Zhang-Zhung
- xzm - Zemgalian
- xzp - Ancient Zapotec
- yaa - Yaminahua
- yab - Yuhup
- yac - Pass Valley Yali
- yad - Yagua
- yae - Pumé
- yaf - Yaka (Democratic Republic of Congo)
- yag - Yámana
- yah - Yazgulyam
- yai - Yagnobi
- yaj - Banda-Yangere
- yak - Yakima
- yal - Yalunka
- yam - Yamba
- yap - Yapesisch
- yaq - Yaqui
- yar - Yabarana
- yas - Nugunu
- yat - Yambeta
- yau - Yuwana
- yav - Yangben
- yaw - Yawalapití
- yax - Yauma
- yay - Agwagwune
- yaz - Lokaa
- yba - Yala
- ybb - Yemba
- ybd - Yangbye
- ybe - West Yugur
- ybh - Yakha
- ybi - Yamphu
- ybj - Hasha
- ybk - Bokha
- ybl - Yukuben
- ybm - Yaben
- ybn - Yabaâna
- ybo - Yabong
- ybx - Yawiyo
- yby - Yaweyuha
- ych - Chesu
- ycl - Lolopo
- ycn - Yucuna
- ycp - Chepya
- ydd - Eastern Yiddish
- yde - Yangum Dey
- ydg - Yidgha
- ydk - Yoidik
- yds - Yiddish Sign Language
- yea - Ravula
- yec - Yeniche
- yee - Yimas
- yei - Yeni
- yej - Yevanic
- yel - Yela
- yen - Yendang
- yer - Tarok
- yes - Yeskwa
- yet - Yetfa
- yeu - Yerukula
- yev - Yapunda
- yey - Yeyi
- ygl - Yangum Gel
- ygm - Yagomi
- ygp - Gepo
- ygr - Yagaria
- ygw - Yagwoia
- yha - Baha Buyang
- yhd - Arabic, Judeo-Iraqi
- yhl - Hlepho Phowa
- yia - Yinggarda
- yid - Jiddisch
- yif - Ache
- yig - Wusa Nasu
- yih - Western Yiddish
- yii - Yidiny
- yij - Yindjibarndi
- yik - Dongshanba Lalo
- yil - Yindjilandji
- yim - Naga, Yimchungru
- yin - Yinchia
- yip - Pholo
- yiq - Miqie
- yir - Awyu, North
- yis - Yis
- yit - Eastern Lalu
- yiu - Awu
- yiv - Northern Nisu
- yix - Axi Yi
- yiy - Yir Yoront
- yiz - Azhe
- yka - Yakan
- ykg - Northern Yukaghir
- yki - Yoke
- ykk - Yakaikeke
- ykl - Khlula
- ykm - Kap
- yko - Yasa
- ykr - Yekora
- ykt - Kathu
- yky - Yakoma
- yla - Yaul
- yle - Yele
- ylg - Yelogu
- yli - Angguruk Yali
- yll - Yil
- ylm - Limi
- yln - Langnian Buyang
- ylo - Naluo Yi
- ylr - Yalarnnga
- ylu - Aribwaung
- yly - Nyâlayu
- yma - Yamphe
- ymb - Yambes
- ymc - Southern Muji
- ymd - Muda
- yme - Yameo
- ymg - Yamongeri
- ymh - Mili
- ymi - Moji
- ymk - Makwe
- yml - Iamalele
- ymm - Maay
- ymn - Yamna
- ymo - Yangum Mon
- ymp - Yamap
- ymq - Qila Muji
- ymr - Malasar
- yms - Mysian
- ymt - Mator-Taygi-Karagas
- ymx - Northern Muji
- ymz - Muzi
- yna - Aluo
- ynd - Yandruwandha
- yne - Lang'e
- yng - Yango
- ynh - Yangho
- ynk - Naukan Yupik
- ynl - Yangulam
- ynn - Yana
- yno - Yong
- yns - Yansi
- ynu - Yahuna
- yob - Yoba
- yog - Yogad
- yoi - Yonaguni
- yok - Yokuts
- yol - Yola
- yom - Yombe
- yon - Yonggom
- yor - Yoruba-Sprache
- yos - Yos
- yox - Yoron
- yoy - Yoy
- ypa - Phala
- ypb - Labo Phowa
- ypg - Phola
- yph - Phupha
- ypm - Phuma
- ypn - Ani Phowa
- ypo - Alo Phola
- ypp - Phupa
- ypz - Phuza
- yra - Yerakai
- yrb - Yareba
- yre - Yaouré
- yri - Yarí
- yrk - Nenets
- yrl - Nhengatu
- yrn - Yerong
- yrs - Yarsun
- yrw - Yarawata
- ysc - Yassic
- ysd - Samatao
- ysl - Yugoslavian Sign Language
- ysn - Sani
- yso - Nisi (China)
- ysp - Southern Lolopo
- ysr - Sirenik Yupik
- yss - Yessan-Mayo
- ysy - Sanie
- yta - Talu
- ytl - Tanglang
- ytp - Thopho
- yua - Maya, Yucatán
- yub - Yugambal
- yuc - Yuchi
- yud - Arabic, Judeo-Tripolitanian
- yue - Chinese, Yue
- yuf - Havasupai-Walapai-Yavapai
- yug - Yug
- yui - Yurutí
- yuj - Karkar-Yuri
- yuk - Yuki
- yul - Yulu
- yum - Quechan
- yun - Bena
- yup - Yukpa
- yuq - Yuqui
- yur - Yurok
- yus - Maya, Chan Santa Cruz
- yut - Yopno
- yuu - Yugh
- yuw - Yau (Morobe Province)
- yux - Southern Yukaghir
- yuy - East Yugur
- yuz - Yuracare
- yva - Yawa
- yvt - Yavitero
- ywa - Kalou
- ywl - Western Lalu
- ywn - Yawanawa
- ywq - Wuding-Luquan Yi
- ywr - Yawuru
- ywt - Xishanba Lalo
- ywu - Wumeng Nasu
- yww - Yawarawarga
- yyu - Yau (Sandaun Province)
- yyz - Ayizi
- yzg - E'ma Buyang
- yzk - Zokhuo
- zaa - Sierra de Juárez Zapotec
- zab - San Juan Guelavía Zapotec
- zac - Ocotlán Zapotec
- zad - Cajonos Zapotec
- zae - Yareni Zapotec
- zaf - Ayoquesco Zapotec
- zag - Zaghawa
- zah - Zangwal
- zai - Isthmus Zapotec
- zaj - Zaramo
- zak - Zanaki
- zal - Zauzou
- zam - Miahuatlán Zapotec
- zao - Ozolotepec Zapotec
- zap - Zapotekisch
- zaq - Aloápam Zapotec
- zar - Rincón Zapotec
- zas - Santo Domingo Albarradas Zapotec
- zat - Tabaa Zapotec
- zau - Zangskari
- zav - Yatzachi Zapotec
- zaw - Mitla Zapotec
- zax - Xadani Zapotec
- zay - Zayse-Zergulla
- zaz - Zari
- zbc - Central Berawan
- zbe - East Berawan
- zbl - Bliss-Symbol
- zbt - Batui
- zbw - West Berawan
- zca - Coatecas Altas Zapotec
- zch - Central Hongshuihe Zhuang
- zdj - Ngazidja Comorian
- zea - Zeeuws
- zeg - Zenag
- zeh - Eastern Hongshuihe Zhuang
- zen - Zenaga
- zga - Kinga
- zgb - Guibei Zhuang
- zgm - Minz Zhuang
- zgn - Guibian Zhuang
- zgr - Magori
- zha - Zhuang
- zhb - Zhaba
- zhd - Dai Zhuang
- zhi - Zhire
- zhn - Nong Zhuang
- zho - Chinesisch
- zhw - Zhoa
- zia - Zia
- zib - Zimbabwe Sign Language
- zik - Zimakani
- zim - Mesme
- zin - Zinza
- zir - Ziriya
- ziw - Zigula
- ziz - Zizilivakan
- zka - Kaimbulawa
- zkb - Koibal
- zkg - Koguryo
- zkh - Khorezmian
- zkk - Karankawa
- zko - Kott
- zkp - Kaingáng, São Paulo
- zkr - Zakhring
- zkt - Kitan
- zku - Kaurna
- zkv - Krevinian
- zkz - Khazar
- zlj - Liujiang Zhuang
- zlm - Malay (individual language)
- zln - Lianshan Zhuang
- zlq - Liuqian Zhuang
- zma - Manda
- zmb - Zimba
- zmc - Margany
- zmd - Maridan
- zme - Mangerr
- zmf - Mfinu
- zmg - Marti Ke
- zmh - Makolkol
- zmi - Negeri Sembilan Malay
- zmj - Maridjabin
- zmk - Mandandanyi
- zml - Madngele
- zmm - Marimanindji
- zmn - Mbangwe
- zmo - Molo
- zmp - Mpuono
- zmq - Mituku
- zmr - Maranunggu
- zms - Mbesa
- zmt - Maringarr
- zmu - Muruwari
- zmv - Mbariman-Gudhinma
- zmw - Mbo
- zmx - Bomitaba
- zmy - Mariyedi
- zmz - Mbandja
- zna - Zan Gula
- zne - Zande (individual language)
- zng - Mang
- znk - Manangkari
- zns - Mangas
- zoc - Copainalá Zoque
- zoh - Chimalapa Zoque
- zom - Zou
- zoo - Asunción Mixtepec Zapotec
- zoq - Tabasco Zoque
- zor - Rayón Zoque
- zos - Francisco León Zoque
- zpa - Lachiguiri Zapotec
- zpb - Yautepec Zapotec
- zpc - Choapan Zapotec
- zpd - Southeastern Ixtlán Zapotec
- zpe - Petapa Zapotec
- zpf - San Pedro Quiatoni Zapotec
- zpg - Guevea De Humboldt Zapotec
- zph - Totomachapan Zapotec
- zpi - Santa María Quiegolani Zapotec
- zpj - Quiavicuzas Zapotec
- zpk - Tlacolulita Zapotec
- zpl - Lachixío Zapotec
- zpm - Mixtepec Zapotec
- zpn - Santa Inés Yatzechi Zapotec
- zpo - Amatlán Zapotec
- zpp - El Alto Zapotec
- zpq - Zoogocho Zapotec
- zpr - Santiago Xanica Zapotec
- zps - Coatlán Zapotec
- zpt - San Vicente Coatlán Zapotec
- zpu - Yalálag Zapotec
- zpv - Chichicapan Zapotec
- zpw - Zaniza Zapotec
- zpx - San Baltazar Loxicha Zapotec
- zpy - Mazaltepec Zapotec
- zpz - Texmelucan Zapotec
- zqe - Qiubei Zhuang
- zra - Kara (Korea)
- zrg - Mirgan
- zrn - Zirenkel
- zro - Záparo
- zrp - Zarphatic
- zrs - Mairasi
- zsa - Sarasira
- zsk - Kaskean
- zsl - Zambian Sign Language
- zsm - Standard Malay
- zsr - Southern Rincon Zapotec
- zsu - Sukurum
- zte - Elotepec Zapotec
- ztg - Xanaguía Zapotec
- ztl - Lapaguía-Guivini Zapotec
- ztm - San Agustín Mixtepec Zapotec
- ztn - Santa Catarina Albarradas Zapotec
- ztp - Loxicha Zapotec
- ztq - Quioquitani-Quierí Zapotec
- zts - Tilquiapan Zapotec
- ztt - Tejalapan Zapotec
- ztu - Güilá Zapotec
- ztx - Zaachila Zapotec
- zty - Yatee Zapotec
- zua - Zeem
- zuh - Tokano
- zul - Zulu-Sprache
- zum - Kumzari
- zun - Zuñi-Sprache
- zuy - Zumaya
- zwa - Zay
- zyb - Yongbei Zhuang
- zyg - Yang Zhuang
- zyj - Youjiang Zhuang
- zyn - Yongnan Zhuang
- zyp - Zyphe
- zza - Zazaki
- zzj - Zuojiang Zhuang