This is the list of ISO 639-2 language codes implemented in the ISAN Registry.
| ISO 639-2 Code | English name of Language |
| AAR | Afar |
| ABK | Abkhazian |
| ACE | Achinese (Aceh) |
| ACH | Acoli |
| ADA | Adangme(One of the Ghana language) |
| ADY | Adyghe; Adygei |
| AFA | Afro-Asiatic (Other) |
| AFH | Afrihili |
| AFR | Afrikaans |
| AIN | Ainu |
| AKA | Akan(One of the Ghana language) |
| AKK | Akkadian (Babylonian) |
| ALB | Albanian |
| ALE | Aleut (an Eskimo language from Aleutian Islands) |
| ALG | Algonquian languages |
| ALT | Southern Altai |
| AMH | Amharic (or Abyssinian-main language of Ethiopia) |
| ANG | English-Old (ca.450-1100) |
| ANP | Angika |
| APA | Apache languages |
| ARA | Arabic |
| ARC | Aramaic (Syria) |
| ARG | Aragonese |
| ARM | Armenian (Hayeren) |
| ARN | Araucanian (S.Central Chile) |
| ARP | Arapaho |
| ART | Artificial (Other) |
| ARW | Arawak |
| ASM | Assamese (Indo-Iranian sub family) |
| AST | Asturian-Bable-Leonese-Asturleonese |
| ATH | Athapascan languages |
| AUS | Australianl anguages |
| AVA | Avaric |
| AVE | Avestan |
| AWA | Awadhi |
| AYM | Aymara (language from indigenous people near lake Titicaca basin in Peru and Bolivia) |
| AZE | Azerbaijani (Azeri) |
| BAD | Banda |
| BAI | Bamileke languages |
| BAK | Bashkir |
| BAL | Baluchi |
| BAM | Bambara |
| BAN | Balinese |
| BAQ | Basque |
| BAS | Basa |
| BAT | Baltic (Other) |
| BEJ | Beja (spoken near Ethiopia and ajoining regions) |
| BEL | Belarussian (white russian) |
| BEM | Bemba |
| BEN | Bengali (Bangla) |
| BER | Berber (Other) |
| BHO | Bhojpuri |
| BIH | Bihari (an east indic language) |
| BIK | Bikol |
| BIN | Bini |
| BIS | Bislama (one of the major Vanuatu language) |
| BLA | Siksika (Blackfoot) |
| BNT | Bantu (Other) |
| BOS | Bosnian |
| BRA | Braj |
| BRE | Breton (Brez) |
| BTK | Batak (Indonesia) |
| BUA | Buriat |
| BUG | Buginese (Bugi) |
| BUL | Bulgarian |
| BUR | Burmese (Myanmasa)(belonging to the Tibeto-Burman sub family) |
| BYN | Blin; Bilin |
| CAD | Caddo |
| CAI | Central American Indian (Oth.) |
| CAK | Cakchiquel, Kaqchikel |
| CAR | Carib |
| CAT | Catalan |
| CAU | Caucasian (Other) |
| CEB | Cebuano |
| CEL | Celtic (Other) |
| CHA | Chamorro (Guam and Northern Mariana Islands) |
| CHB | Chibcha (Colombia) |
| CHE | Chechen |
| CHG | Chagatai |
| CHI | Chinese (Zhongwen) |
| CHK | Chuukese |
| CHM | Mari |
| CHN | Chinookjargon |
| CHO | Choctaw |
| CHP | Chipewyan |
| CHR | Cherokee |
| CHU | Church Slavic |
| CHV | Chuvash |
| CHY | Cheyenne |
| CJS | Shor |
| CMC | Chamic languages |
| CMN | Mandarin Dialect |
| CNR | Montenegrin |
| COP | Coptic |
| COR | Cornish |
| COS | Corsican |
| CPE | Creoles and pidgins-English-based (Other) |
| CPF | Creoles and pidgins-French-based (Other) |
| CPP | Creoles and pidgins-Portuguese-based (Other) |
| CRE | Cree |
| CRH | Crimean Tatar; Crimean Turkish |
| CRI | Saotomense |
| CRP | Creoles and pidgins (Other) |
| CSB | Kashubian |
| CUS | Cushitic (Other) |
| CZE | Czech |
| DAK | Dakota |
| DAN | Danish |
| DAR | Dargwa |
| DAY | Dayak |
| DEL | Delaware |
| DEN | Slave (Athapascan) |
| DGR | Dogrib |
| DIN | Dinka |
| DIV | Divehi (Maldives) |
| DJC | Dar Daju Daju |
| DOI | Dogri |
| DRA | Dravidian (Other) |
| DSB | Lower Sorbian |
| DUA | Duala |
| DUM | Dutch-Middle (ca.1050-1350) |
| DUT | Dutch |
| DYU | Dyula |
| DZO | Dzongkha (Bhutani) |
| EFI | Efik |
| EGY | Egyptian (Ancient) |
| EKA | Ekajuk |
| ELX | Elamite |
| ENG | English |
| ENM | English-Middle (1100-1500) |
| EPO | Esperanto |
| EST | Estonian (Eesti) |
| EWE | Ewe (mainl anguage of Togo) |
| EWO | Ewondo |
| FAN | Fang (Equatorial Guinea and Gabon) |
| FAO | Faroese (Faeroese Island) |
| FAT | Fanti (One of the Ghana language) |
| FIJ | Fijian |
| FIL | Filipino; Pilipino |
| FIN | Finnish (Suomi) |
| FIU | Finno-Ugrian (Lapland language) |
| FNG | Fanagalo |
| FON | Fon (Official language of Benin with French) |
| FRE | French |
| FRM | French-Middle (ca.1400-1600) |
| FRO | French-Old (ca.842-1400) |
| FRR | Northern Frisian |
| FRS | Eastern Frisian |
| FRY | Frisian (Frysk) |
| FUL | Fulah (From Senegal to eastern Sudan) |
| FUR | Friulian |
| GAA | Ga |
| GAY | Gayo |
| GBA | Gbaya |
| GEM | Germanic (Other) |
| GEO | Georgian (Kartuli) |
| GER | German |
| GEZ | Geez(classical Ethiopic) |
| GIL | Gilbertese (Kiribati) |
| GLA | Gaelic (Scots) |
| GLE | Irish |
| GLG | Gallegan (Galician-Galego) |
| GLV | Manx |
| GMH | German-Middle High (ca.1050-1500) |
| GOH | German-Old High (ca.750-1050) |
| GON | Gondi |
| GOR | Gorontalo |
| GOT | Gothic |
| GRB | Grebo |
| GRC | Greek-Ancient (to1453) |
| GRE | Greek-Modern (1453-)(Ellinika) |
| GRN | Guarani (bolivia-paraguay-and south of Brezil) |
| GSW | Swiss German |
| GUJ | Gujarati (north west india) |
| GWI | Gwich'in |
| HAI | Haida |
| HAT | Haitian; Haitian Creole |
| HAU | Hausa (Nigeria) |
| HAW | Hawaiian |
| HAZ | Hazaragi |
| HBS | Serbo-Croatian |
| HEB | Hebrew (Iwrith) |
| HER | Herero (Namibia) |
| HIL | Hiligaynon |
| HIM | Himachali |
| HIN | Hindi (official language of northern India) |
| HIT | Hittite |
| HMN | Hmong |
| HMO | HiriMotu |
| HRV | Croatian |
| HSB | Upper Sorbian |
| HUN | Hungarian (Magyar) |
| HUP | Hupa |
| IBA | Iban |
| IBO | Igbo |
| ICE | Icelandic |
| IDO | Ido |
| III | Sichuan Yi; Nuosu |
| IJO | Ijo |
| IKU | Inuktitut |
| ILE | Interlingue |
| ILO | Iloko |
| INA | Interlingua (International Auxilary Language Association) |
| INC | Indic (Other) |
| IND | Indonesian |
| INE | Indo-European (Other) |
| INH | Ingush |
| IPK | Inupiak |
| IRA | Iranian (Other) |
| IRO | Iroquoian languages |
| ITA | Italian |
| JAV | Javanese |
| JBO | Lojban |
| JPN | Japanese (Nihongo) |
| JPR | Judeo-Persian |
| JRB | Judeo-Arabic |
| KAA | Kara-Kalpak |
| KAB | Kabyle |
| KAC | Kachin |
| KAL | Kalaallisut(or Greenlandic) |
| KAM | Kamba (Kenya) |
| KAN | Kannada |
| KAR | Karen |
| KAS | Kashmiri |
| KAU | Kanuri |
| KAW | Kawi |
| KAZ | Kazakh |
| KBD | Kabardian |
| KEA | Kabuverdianu |
| KHA | Khasi |
| KHI | Khoisan (Other) (Namibia and West South Africa) |
| KHM | Khmer (Cambodian) |
| KHO | Khotanese (or Saka-EastIranian) |
| KIK | Kikuyu (Northern Kenya) |
| KIN | Kinyarwanda (Rwanda) |
| KIR | Kirghiz |
| KLS | Kalasha |
| KMB | Kimbundu (Angola) |
| KOK | Konkani (south indic) |
| KOM | Komi |
| KON | Kongo |
| KOR | Korean |
| KOS | Kosraean |
| KPE | Kpelle |
| KRC | Karachay-Balkar |
| KRL | Karelian |
| KRO | Kru |
| KRU | Kurukh |
| KUA | Kuanyama |
| KUM | Kumyk |
| KUR | Kurdish |
| KUT | Kutenai |
| LAD | Ladino |
| LAH | Lahnda |
| LAM | Lamba |
| LAO | Lao (Laothian) |
| LAT | Latin |
| LAV | Latvian (lettish-letonian) |
| LBJ | Ladakhi |
| LEZ | Lezghian |
| LIM | Limburgan; Limburger; Limburgish |
| LIN | Lingala |
| LIT | Lithuanian |
| LKT | Lakota |
| LOL | Mongo |
| LOZ | Lozi |
| LTZ | Letzeburgesch (luxembourg low german dialect) |
| LUA | Luba-Lulua (Central Zaire) |
| LUB | Luba-Katanga |
| LUG | Ganda(or Baganda-Uganda) |
| LUI | Luiseno |
| LUN | Lunda |
| LUO | Luo (Kenya and Tanzania) |
| LUS | Lushai |
| MAC | Macedonian |
| MAD | Madurese |
| MAG | Magahi |
| MAH | Marshall |
| MAI | Maithili |
| MAK | Makasar |
| MAL | Malayalam |
| MAN | Mandingo (spoken in Sierra Leone-Liberia-Guinea-Ivory Coast-Mali and Burkina Faso) |
| MAO | Maori |
| MAP | Austronesian (Other-Malayo-Polynesian) |
| MAR | Marathi |
| MAS | Masai (Nomadic people of East Africa-Kenya and Tanzania) |
| MAY | Malay |
| MDF | Moksha |
| MDR | Mandar |
| MEN | Mende(Sierra Leone) |
| MEY | Hassaniyya |
| MGA | Irish-Middle(900-1200) |
| MIC | Micmac |
| MIN | Minangkabau |
| MIS | Miscellaneous languages |
| MKH | Mon-Khmer (Other) |
| MLG | Malagasy |
| MLT | Maltese |
| MNC | Manchu |
| MNI | Manipuri |
| MNO | Manobo languages |
| MOH | Mohawk |
| MOL | Moldavian |
| MON | Mongolian |
| MOS | Mossi(More) |
| MUL | Multiple languages |
| MUN | Mundal anguages |
| MUS | Creek(Muskogee) |
| MWL | Mirandese |
| MWR | Marwari |
| MYN | Mayan languages |
| MYV | Erzya |
| NAH | Aztec (Nahuatl) |
| NAI | North American Indian (Other) |
| NAP | Neapolitan |
| NAQ | Khoekhoe, Nama (Namibia) |
| NAU | Nauru |
| NAV | Navajo |
| NBL | Ndebele-South (Zimbabwe-Botswana) |
| NDE | Ndebele-North (Zimbabwe-Botswana) |
| NDO | Ndonga |
| NDS | Low German; Low Saxon; German, Low; Saxon, Low |
| NEP | Nepali |
| NEW | Newari |
| NIA | Nias |
| NIC | Niger-Kordofanian (Other) |
| NIU | Niuean (Niue Island) |
| NNO | Norwegian Nynorsk; Nynorsk, Norwegian |
| NOB | Bokmål, Norwegian; Norwegian Bokmål |
| NOD | Northern Thai |
| NOG | Nogai |
| NON | Norse-Old |
| NOR | Norwegian |
| NQO | N'Ko |
| NSO | Sohto-Northern |
| NUB | Nubian languages |
| NWC | Classical Newari; Old Newari; Classical Nepal Bhasa |
| NYA | Nyanja |
| NYM | Nyamwezi |
| NYN | Nyankole |
| NYO | Nyoro |
| NZI | Nzima |
| OCI | Occitan (post1500) |
| OJI | Ojibwa |
| ORI | Oriya |
| ORM | Oromo (Galla or Afan) (West and South Ethiopia and Kenya) |
| OSA | Osage |
| OSS | Ossetic |
| OTA | Turkish-Ottoman(1500-1928) |
| OTO | Otomian languages |
| PAA | Papuan(Other) |
| PAG | Pangasinan |
| PAL | Pahlavi |
| PAM | Pampanga |
| PAN | Panjabi(language of Punjab) |
| PAP | Papiamento |
| PAU | Palauan (Palau Island in Micronesia) |
| PEO | Persian-Old (ca.600-400B.C.) |
| PER | Persian (Farsi) |
| PEZ | Eastern Penan |
| PHI | Philippine (Other) |
| PHN | Phoenician |
| PLI | Pali |
| POL | Polish |
| PON | Pohnpeian |
| POR | Portuguese |
| PRA | Prakrit languages |
| PRO | Provencal-Old (to1500) |
| PRS | Afghan Persian, Dari |
| PUS | Pushto (or Pachto-Afghan) |
| QSI | Silent Film |
| QUE | Quechua(Bolivia-Peru and Ecuador) |
| RAJ | Rajasthani |
| RAP | Rapanui |
| RAR | Rarotongan |
| RCF | Réunion Creole French |
| ROA | Romance (Other) |
| ROH | Raeto-Romance |
| ROM | Romany(Gipsy language) |
| RUM | Romanian |
| RUN | Rundi (or Kirundi) |
| RUP | Aromanian; Arumanian; Macedo-Romanian |
| RUS | Russian |
| RUY | Central Okinawan |
| SAD | Sandawe |
| SAG | Sango (Central African Republic) |
| SAH | Yakut |
| SAI | South American Indian (Other) |
| SAL | Salishan languages |
| SAM | Samaritan Aramaic |
| SAN | Sanskrit |
| SAS | Sasak |
| SAT | Santali |
| SCN | Sicilian |
| SCO | Scots |
| SEL | Selkup |
| SEM | Semitic (Other) |
| SGA | Irish-Old (to900) |
| SGN | Sign Languages |
| SHN | Shan |
| SID | Sidamo |
| SIN | Sinhalese (Sri Lanka) |
| SIO | Siouan languages |
| SIT | Sino-Tibetan (Other) |
| SLA | Slavic (Other) |
| SLO | Slovak |
| SLV | Slovenian |
| SMA | Southern Sami |
| SME | Northern Sami |
| SMI | Sami languages |
| SMJ | Lule Sami |
| SMN | Inari Sami |
| SMO | Samoan |
| SMS | Skolt Sami |
| SNA | Shona |
| SND | Sindhi |
| SNK | Soninke |
| SOG | Sogdian |
| SOM | Somali |
| SON | Songhai |
| SOT | Sotho (Southern-language of The Lesotho) |
| SPA | Spanish |
| SRD | Sardinian |
| SRN | Sranan Tongo |
| SRP | Serbian |
| SRR | Serer |
| SSA | Nilo-Saharan (Other) |
| SSW | Swati (Siswant-Siswati) |
| SUK | Sukuma |
| SUN | Sundanese |
| SUS | Susu(Guinea) |
| SUX | Sumerian |
| SWA | Swahili (abantu language over much of east Africa and the Congo region) |
| SWE | Swedish |
| SYC | Classical Syriac |
| SYR | Syriac |
| TAH | Tahitian |
| TAI | Tai (Other) |
| TAM | Tamil (part of India and Sri Lanka) |
| TAT | Tatar |
| TEL | Telugu |
| TEM | Timne |
| TER | Tereno |
| TET | Tetum |
| TGK | Tajik |
| TGL | Tagalog (Philipines) |
| THA | Thai |
| TIB | Tibetan (Bodskad) |
| TIG | Tigre |
| TIR | Tigrinya |
| TIV | Tiv |
| TKL | Tokelau |
| TLH | Klingon; tlh Ingan-Hol |
| TLI | Tlingit |
| TMH | Tuareg (Tamashek) |
| TOG | Tonga (Nyasa) |
| TON | Tonga (Tonga Islands) |
| TPI | Tok Pisin |
| TSI | Tsimshian |
| TSN | Tswana (Setswana) |
| TSO | Tsonga |
| TUK | Turkmen |
| TUM | Tumbuka |
| TUP | Tupi languages |
| TUR | Turkish |
| TUT | Altaic (Other) |
| TVL | Tuvalu |
| TWI | Twi |
| TYV | Tuvinian |
| UDM | Udmurt |
| UGA | Ugaritic |
| UIG | Uighur |
| UKR | Ukrainian |
| UMB | Umbundu |
| UND | Undetermined |
| URD | Urdu (Pakistanian) |
| UZB | Uzbek |
| VAI | Vai |
| VEN | Venda (South africa) |
| VIE | Vietnamese |
| VOL | Volapuk |
| VOT | Votic |
| WAK | Wakashan languages |
| WAL | Walamo |
| WAR | Waray |
| WAS | Washo |
| WEL | Welsh |
| WEN | Sorbian languages |
| WLN | Walloon |
| WOD | Wolani |
| WOL | Wolof (niger-congo language of senegambia) |
| XAL | Kalmyk; Oirat |
| XCA | Cantonese (Chinese dialect from Guangzhou) |
| XCH | Chadic (spoken in Chad-northern Cameroon and northern Nigeria) |
| XCI | Swiss Italian dialect |
| XCS | Caspian |
| XHO | Xhosa(Lesotho-Bantustan-South Africa) |
| XLA | Laz |
| XPY | Pygmies language |
| XWA | Wallon |
| YAO | Yao |
| YAP | Yapese |
| YID | Yiddish |
| YOR | Yoruba (South West Nigeria and Benin) |
| YPK | Yupik languages |
| ZAP | Zapotec |
| ZBL | Blissymbols; Blissymbolics; Bliss |
| ZEN | Zenaga |
| ZGH | Standard Moroccan Tamazight |
| ZHA | Zhuang |
| ZND | Zande |
| ZUL | Zulu |
| ZUN | Zuni |
| ZZA | Zaza; Dimili; Dimli; Kirdki; Kirmanjki; Zazaki |