| Language | ISO 639-3 | Status |
|---|---|---|
| ‘Are’are | alu | Living |
| ‘Auhelawa | kud | Living |
| A’ou | aou | Living |
| A-Pucikwar | apq | Living |
| Aari | aiw | Living |
| aas | Living | |
| Abadi | kbt | Living |
| Abaga | abg | Living |
| Abai Sungai | abf | Living |
| Abanyom | abm | Living |
| Abar | mij | Living |
| Abau | aau | Living |
| Abaza | abq | Living |
| Abellen Ayta | abp | Living |
| Abidji | abi | Living |
| Abinomn | bsa | Living |
| Abipon | axb | Extinct |
| Abishira | ash | Extinct |
| Abkhazian | abk | Living |
| Abom | aob | Living |
| Abon | abo | Living |
| Abron | abr | Living |
| Abu | ado | Living |
| Abu’ Arapesh | aah | Living |
| Abua | abn | Living |
| Abui | abz | Living |
| Abun | kgr | Living |
| Abure | abu | Living |
| Abureni | mgj | Living |
| Abé | aba | Living |
| Acatepec Me’phaa | tpx | Living |
| Achagua | aca | Living |
| Achang | acn | Living |
| Ache | yif | Living |
| Acheron | acz | Living |
| Achi | acr | Living |
| Achinese | ace | Living |
| Achterhoeks | act | Living |
| Achuar-Shiwiar | acu | Living |
| Achumawi | acv | Living |
| Aché | guq | Living |
| Acoli | ach | Living |
| Acroá | acs | Extinct |
| Adabe | adb | Living |
| Adai | xad | Extinct |
| Adamawa Fulfulde | fub | Living |
| Adamorobe Sign Language | ads | Living |
| Adang | adn | Living |
| Adangbe | adq | Living |
| Adangme | ada | Living |
| Adara | kad | Living |
| Adasen | tiu | Living |
| Adele | ade | Living |
| Adhola | adh | Living |
| Adi | adi | Living |
| Adioukrou | adj | Living |
| Adithinngithigh | dth | Extinct |
| Adivasi Oriya | ort | Living |
| Adiwasi Garasia | gas | Living |
| Adnyamathanha | adt | Living |
| Adonara | adr | Living |
| Aduge | adu | Living |
| Adyghe | ady | Living |
| Adzera | adz | Living |
| Aeka | aez | Living |
| Aekyom | awi | Living |
| Aequian | xae | Ancient |
| Aer | aeq | Living |
| Afade | aal | Living |
| Afar | aar | Living |
| Afghan Sign Language | afg | Living |
| Afitti | aft | Living |
| Afrihili | afh | Constructed |
| Afrikaans | afr | Living |
| Afro-Seminole Creole | afs | Living |
| Agarabi | agd | Living |
| Agariya | agi | Living |
| Agatu | agc | Living |
| Agavotaguerra | avo | Extinct |
| Aghem | agq | Living |
| Aghu | ahh | Living |
| Aghu-Tharnggala | gtu | Extinct |
| Aghul | agx | Living |
| Aghwan | xag | Extinct |
| Agi | aif | Living |
| Agob | kit | Living |
| Agoi | ibm | Living |
| Aguacateco | agu | Living |
| Aguano | aga | Extinct |
| Aguaruna | agr | Living |
| Aguna | aug | Living |
| Agusan Manobo | msm | Living |
| Agutaynen | agn | Living |
| Agwagwune | yay | Living |
| Ahanta | aha | Living |
| Aheu | thm | Living |
| Ahirani | ahr | Living |
| Ahom | aho | Extinct |
| Ahtena | aht | Living |
| Ahwai | nfd | Living |
| Ai-Cham | aih | Living |
| Aighon | aix | Living |
| Aikanã | tba | Living |
| Aiklep | mwg | Living |
| Aimaq | aiq | Living |
| Aimele | ail | Living |
| Aimol | aim | Living |
| Ainbai | aic | Living |
| Ainu (China) | aib | Living |
| Ainu (Japan) | ain | Living |
| Aiome | aki | Living |
| Airoran | air | Living |
| Aiton | aio | Living |
| Aja (Benin) | ajg | Living |
| Aja (Sudan) | aja | Living |
| Ajawa | ajw | Extinct |
| Ajië | aji | Living |
| Ajumbu | muc | Living |
| Ajyíninka Apurucayali | cpc | Living |
| Ak | akq | Living |
| Aka | soh | Living |
| Aka-Bea | abj | Extinct |
| Aka-Bo | akm | Extinct |
| Aka-Cari | aci | Extinct |
| Aka-Jeru | akj | Extinct |
| Aka-Kede | akx | Extinct |
| Aka-Kol | aky | Extinct |
| Aka-Kora | ack | Extinct |
| Akan | aka | Living |
| Akar-Bale | acl | Extinct |
| Akaselem | aks | Living |
| Akawaio | ake | Living |
| Ake | aik | Living |
| Akebu | keu | Living |
| Akei | tsr | Living |
| Akeu | aeu | Living |
| Akha | ahk | Living |
| Akhvakh | akv | Living |
| Akkadian | akk | Ancient |
| Akkala Sami | sia | Extinct |
| Aklanon | akl | Living |
| Akolet | akt | Living |
| Akoose | bss | Living |
| Akoye | miw | Living |
| Akpa | akf | Living |
| Akpes | ibe | Living |
| Akrukay | afi | Living |
| Akukem | spm | Living |
| Akuku | ayk | Living |
| Akum | aku | Living |
| Akuntsu | aqz | Living |
| Akurio | ako | Living |
| Akwa | akw | Living |
| Akyaung Ari Naga | nqy | Living |
| Al-Sayyid Bedouin Sign Language | syy | Living |
| Alaba-K’abeena | alw | Living |
| Alabama | akz | Living |
| Alabat Island Agta | dul | Living |
| Alacatlatzala Mixtec | mim | Living |
| Alago | ala | Living |
| Alagwa | wbj | Living |
| Alak | alk | Living |
| Alamblak | amp | Living |
| Alangan | alj | Living |
| Alanic | xln | Ancient |
| Alapmunte | apv | Extinct |
| Alawa | alh | Living |
| Albanian | sqi | Living |
| Albanian Sign Language | sqk | Living |
| Alcozauca Mixtec | xta | Living |
| Alege | alf | Living |
| Alekano | gah | Living |
| Aleut | ale | Living |
| Algerian Arabic | arq | Living |
| Algerian Saharan Arabic | aao | Living |
| Algerian Sign Language | asp | Living |
| Algonquin | alq | Living |
| Ali | aiy | Living |
| Alladian | ald | Living |
| Allar | all | Living |
| Alngith | aid | Extinct |
| Alo Phola | ypo | Living |
| Alor | aol | Living |
| Aloápam Zapotec | zaq | Living |
| Alsea | aes | Extinct |
| Alu Kurumba | xua | Living |
| Alugu | aub | Living |
| Alumu-Tesu | aab | Living |
| Alune | alp | Living |
| Aluo | yna | Living |
| Alur | alz | Living |
| Alutor | alr | Living |
| Alviri-Vidari | avd | Living |
| Alyawarr | aly | Living |
| Ama (Papua New Guinea) | amm | Living |
| Ama (Sudan) | nyi | Living |
| Amahai | amq | Living |
| Amahuaca | amc | Living |
| Amaimon | ali | Living |
| Amal | aad | Living |
| Amanab | amn | Living |
| Amanayé | ama | Extinct |
| Amara | aie | Living |
| Amarakaeri | amr | Living |
| Amarasi | aaz | Living |
| Amatlán Zapotec | zpo | Living |
| Amba (Solomon Islands) | utp | Living |
| Amba (Uganda) | rwm | Living |
| Ambai | amk | Living |
| Ambakich | aew | Living |
| Ambala Ayta | abc | Living |
| Ambelau | amv | Living |
| Ambele | ael | Living |
| Amblong | alm | Living |
| Ambo | amb | Living |
| Ambo-Pasco Quechua | qva | Living |
| Ambonese Malay | abs | Living |
| Ambrak | aag | Living |
| Ambul | apo | Living |
| Ambulas | abt | Living |
| Amdang | amj | Living |
| Amdo Tibetan | adx | Living |
| Amele | aey | Living |
| American Sign Language | ase | Living |
| Amganad Ifugao | ifa | Living |
| Amharic | amh | Living |
| Ami | amy | Living |
| Amis | ami | Living |
| Amo | amo | Living |
| Amol | alx | Living |
| Amoltepec Mixtec | mbz | Living |
| Ampanang | apg | Living |
| Ampari Dogon | aqd | Living |
| Amri Karbi | ajz | Living |
| Amto | amt | Living |
| Amundava | adw | Living |
| Amurdak | amg | Living |
| Ana Tinga Dogon | dti | Living |
| Anaang | anw | Living |
| Anakalangu | akg | Living |
| Anal | anm | Living |
| Anam | pda | Living |
| Anambé | aan | Living |
| Anamgura | imi | Living |
| Anasi | bpo | Living |
| Ancient Greek (to 1453) | grc | Historic |
| Ancient Hebrew | hbo | Historic |
| Ancient Macedonian | xmk | Ancient |
| Ancient North Arabian | xna | Ancient |
| Ancient Zapotec | xzp | Historic |
| Andaandi | dgl | Living |
| Andai | afd | Living |
| Andajin | ajn | Living |
| Andalusian Arabic | xaa | Historic |
| Andaman Creole Hindi | hca | Living |
| Andaqui | ana | Extinct |
| Andarum | aod | Living |
| Andegerebinha | adg | Living |
| Andh | anr | Living |
| Andi | ani | Living |
| Andio | bzb | Living |
| Andoa | anb | Extinct |
| Andoque | ano | Living |
| Andra-Hus | anx | Living |
| Aneityum | aty | Living |
| Anem | anz | Living |
| Aneme Wake | aby | Living |
| Anfillo | myo | Living |
| Angaataha | agm | Living |
| Angaité | aqt | Living |
| Angal | agw | Living |
| Angal Enen | aoe | Living |
| Angal Heneng | akh | Living |
| Angami Naga | njm | Living |
| Angguruk Yali | yli | Living |
| Angika | anp | Living |
| Angkamuthi | avm | Extinct |
| Anglo-Norman | xno | Historic |
| Angloromani | rme | Living |
| Angolar | aoa | Living |
| Angor | agg | Living |
| Angoram | aog | Living |
| Angosturas Tunebo | tnd | Living |
| Anguthimri | awg | Extinct |
| Ani Phowa | ypn | Living |
| Anii | blo | Living |
| Animere | anf | Living |
| Anindilyakwa | aoi | Living |
| Anjam | bojaad | Living |
| Ankave | aak | Living |
| Anmatyerre | amx | Living |
| Anong | nun | Living |
| Anor | anj | Living |
| Anserma | ans | Extinct |
| Ansus | andad | Living |
| Antakarinya | ant | Living |
| Antankarana Malagasy | xmv | Living |
| Antigua and Barbuda Creole English | aig | Living |
| Anu-Hkongso Chin | anl | Living |
| Anuak | anu | Living |
| Anufo | cko | Living |
| Anuki | aui | Living |
| Anus | auq | Living |
| Anuta | aud | Living |
| Anyin | any | Living |
| Anyin Morofo | mtb | Living |
| Ao Naga | njo | Living |
| Aoheng | pni | Living |
| Aore | aor | Extinct |
| Ap Ma | kbx | Living |
| Apalachee | xap | Extinct |
| Apalaí | apy | Living |
| Apali | ena | Living |
| Apasco-Apoala Mixtec | mip | Living |
| Apatani | apt | Living |
| Apiaká | api | Living |
| Apinayé | apn | Living |
| Apma | app | Living |
| Aproumu Aizi | ahp | Living |
| Apurinã | apu | Living |
| Aputai | apx | Living |
| Aquitanian | xaq | Ancient |
| Arabana | ard | Extinct |
| Arabela | arl | Living |
| Arabic | ara | Living |
| Aragonese | arg | Living |
| Araki | akr | Living |
| Arakwal | rkw | Extinct |
| Aralle-Tabulahan | atq | Living |
| Arammba | stk | Living |
| Aranadan | aaf | Living |
| Aranama-Tamique | xrt | Extinct |
| Arandai | jbj | Living |
| Araona | aro | Living |
| Arapaho | arp | Living |
| Arapaso | arj | Extinct |
| Ararandewára | xaj | Extinct |
| Arawak | arw | Living |
| Araweté | awt | Living |
| Arawum | awm | Living |
| Arbore | arv | Living |
| Arbëreshë Albanian | aae | Living |
| Archi | aqc | Living |
| Ardhamagadhi Prakrit | pka | Historic |
| Are | mwc | Living |
| Areba | aea | Extinct |
| Arem | aem | Living |
| Arequipa-La Unión Quechua | qxu | Living |
| Argentine Sign Language | aed | Living |
| Argobba | agj | Living |
| Arguni | agf | Living |
| Arhuaco | arh | Living |
| Arhâ | aqr | Living |
| Arhö | aok | Living |
| Ari | aac | Living |
| Aribwatsa | laz | Extinct |
| Aribwaung | ylu | Living |
| Arifama-Miniafia | aai | Living |
| Arigidi | aqg | Living |
| Arikapú | ark | Living |
| Arikara | ari | Living |
| Arikem | ait | Extinct |
| Arin | xrn | Extinct |
| Aringa | luc | Living |
| Arma | aoh | Extinct |
| Armazic | xrm | Extinct |
| Armenian | hye | Living |
| Armenian Sign Language | aen | Living |
| Arop-Lokep | apr | Living |
| Arop-Sissano | aps | Living |
| Arosi | aia | Living |
| Arpitan | frp | Living |
| Arritinngithigh | rrt | Extinct |
| Arta | atz | Living |
| Aruamu | msy | Living |
| Aruek | aur | Living |
| Aruop | lsr | Living |
| Arutani | atx | Living |
| Aruá (Amazonas State) | aru | Extinct |
| Aruá (Rodonia State) | arx | Living |
| Arvanitika Albanian | aat | Living |
| As | asz | Living |
| Asaro’o | mtv | Living |
| Asas | asd | Living |
| Ashe | ahs | Living |
| Ashkun | ask | Living |
| Asho Chin | csh | Living |
| Ashtiani | atn | Living |
| Asháninka | cni | Living |
| Ashéninka Pajonal | cjo | Living |
| Ashéninka Perené | prq | Living |
| Asilulu | asl | Living |
| Askopan | eiv | Living |
| Asoa | asv | Living |
| Assamese | asm | Living |
| Assan | xss | Extinct |
| Assangori | sjg | Living |
| Assiniboine | asb | Living |
| Assyrian Neo-Aramaic | aii | Living |
| Asturian | ast | Living |
| Asu (Nigeria) | aum | Living |
| Asu (Tanzania) | asa | Living |
| Asue Awyu | psa | Living |
| Asumboa | aua | Living |
| Asunción Mixtepec Zapotec | zoo | Living |
| Asuri | asr | Living |
| Ata | atm | Living |
| Ata Manobo | atd | Living |
| Atakapa | aqp | Extinct |
| Atampaya | amz | Extinct |
| Atatláhuca Mixtec | mib | Living |
| Atayal | tay | Living |
| Atemble | ate | Living |
| Athpariya | aph | Living |
| Ati | atk | Living |
| Atikamekw | atj | Living |
| Atohwaim | aqm | Living |
| Atong (Cameroon) | ato | Living |
| Atong (India) | aot | Living |
| Atorada | aox | Living |
| Atsahuaca | atc | Extinct |
| Atsam | cch | Living |
| Atsugewi | atw | Living |
| Attapady Kurumba | pkr | Living |
| Attié | ati | Living |
| Atzingo Matlatzinca | ocu | Living |
| Au | avt | Living |
| Aulua | aul | Living |
| Aurá | aux | Extinct |
| Aushi | auh | Living |
| Aushiri | avs | Extinct |
| Austral | aut | Living |
| Australian Aborigines Sign Language | asw | Living |
| Australian Sign Language | asf | Living |
| Austrian Sign Language | asq | Living |
| Auwe | smf | Living |
| Auye | auu | Living |
| Auyokawa | auo | Extinct |
| Avaric | ava | Living |
| Avatime | avn | Living |
| Avau | avb | Living |
| Avestan | ave | Ancient |
| Avikam | avi | Living |
| Avokaya | avu | Living |
| Avá-Canoeiro | avv | Living |
| Awa (China) | vwa | Living |
| Awa (Papua New Guinea) | awb | Living |
| Awa-Cuaiquer | kwi | Living |
| Awabakal | awk | Extinct |
| Awad Bing | bcu | Living |
| Awadhi | awa | Living |
| Awak | awo | Living |
| Awar | aya | Living |
| Awara | awx | Living |
| Awbono | awh | Living |
| Aweer | bob | Living |
| Awera | awr | Living |
| Awetí | awe | Living |
| Awing | azo | Living |
| Awiyaana | auy | Living |
| Awjilah | auj | Living |
| Awngi | awn | Living |
| Awngthim | gwm | Extinct |
| Awtuw | kmn | Living |
| Awu | yiu | Living |
| Awun | aww | Living |
| Awutu | afu | Living |
| Awyi | auw | Living |
| Axamb | ahb | Living |
| Axi Yi | yix | Living |
| Ayabadhu | ayd | Extinct |
| Ayacucho Quechua | quy | Living |
| Ayautla Mazatec | vmy | Living |
| Ayere | aye | Living |
| Ayerrerenge | axe | Extinct |
| Ayi (Papua New Guinea) | ayq | Living |
| Ayiwo | nfl | Living |
| Ayizi | yyz | Living |
| Ayizo Gbe | ayb | Living |
| Aymara | aym | Living |
| Ayoquesco Zapotec | zaf | Living |
| Ayoreo | ayo | Living |
| Ayu | ayu | Living |
| Ayutla Mixtec | miy | Living |
| Azerbaijani | aze | Living |
| Azha | aza | Living |
| Azhe | yiz | Living |
| Azoyú Me’phaa | tpc | Living |