A handy list of ISO 639-1 language codes, sorted alphabetically by language name (as written in English). Some day I might make the columns sortable. Until then use your browser's built-in text search to jump to a specific code and see which natural language it represents.
See also this much more extensive and comprehensive language code lookup tool, courtesy of Richard Ishida.
| Language Name | Code |
|---|---|
| A | |
| Abkhazian | ab |
| Afan (Oromo) | om |
| Afar | aa |
| Afrikaans | af |
| Albanian | sq |
| Amharic | am |
| Arabic | ar |
| Armenian | ar |
| Assamese | hy |
| Aymara | ay |
| Azerbaijani | az |
| B | |
| Bashkir | ba |
| Basque | eu |
| Bengali/Bangla | bn |
| Bhutani | dz |
| Bihari | bh |
| Bislama | bi |
| Breton | br |
| Bulgarian | bg |
| Burmese | my |
| Byelorussian | be |
| C | |
| Cambodian | km |
| Catalan | ca |
| Chinese | zh |
| Corsican | co |
| Croatian | hr |
| Czech | cs |
| D | |
| Danish | da |
| Dutch | nl |
| E | |
| English | en |
| Esperanto | eo |
| Estonian | et |
| F | |
| Faroese | fo |
| Fiji | fj |
| Finnish | fi |
| French | fr |
| Frisian | fy |
| Fula | ff |
| G | |
| Galician | gl |
| Georgian | ka |
| German | de |
| Greek | el |
| Greenlandic | kl |
| Guarani | gn |
| Gujarati | gu |
| H | |
| Hausa | ha |
| Hebrew | he |
| Hindi | hi |
| Hungarian | hu |
| I | |
| Icelandic | is |
| Indonesian | id |
| Interlingua | ia |
| Interlingue | ie |
| Inuktitut | iu |
| Inupiak | ik |
| Irish | ga |
| Italian | it |
| J | |
| Japanese | ja |
| Javanese | jv |
| K | |
| Kannada | kn |
| Kashmiri | ks |
| Kazakh | kk |
| Kinyarwanda | rw |
| Kirghiz | ky |
| Kurundi | rn |
| Korean | ko |
| Kurdish | ku |
| L | |
| Laothian | lo |
| Latin | la |
| Latvian/Lettish | lv |
| Lingala | ln |
| Lithuanian | lt |
| M | |
| Macedonian | mk |
| Malagasy | mg |
| Malay | ms |
| Malayalam | ml |
| Maltese | mt |
| Maori | mi |
| Marathi | mr |
| Moldavian | mo |
| Mongolian | mn |
| N | |
| Nauru | na |
| Nepali | ne |
| Norwegian | no |
| O | |
| Occitan | oc |
| Oriya | or |
| P | |
| Pashto/Pushto | ps |
| Persian (Farsi) | fa |
| Polish | pl |
| Portuguese | pt |
| Punjabi | pa |
| Q | |
| Quechua | qu |
| R | |
| Rhaeto-Romance | rm |
| Romanian | ro |
| Russian | ru |
| S | |
| Samoan | sm |
| Sangho | sg |
| Sanskrit | sa |
| Scots Gaelic | gd |
| Serbian | sr |
| Serbo-Croatian | sh |
| Setswana | st |
| Shona | tn |
| Sindhi | sn |
| Siswati | ss |
| Slovak | sk |
| Slovenian | sl |
| Somali | so |
| Spanish | es |
| Sundanese | su |
| Swahili | sw |
| Swedish | sv |
| Singhalese | si |
| T | |
| Tagalog | tl |
| Tajik | ta |
| Tatar | tt |
| Telugu | te |
| Thai | th |
| Tibetan | bo |
| Tigrinya | ti |
| Tonga | to |
| Tsonga | ts |
| Turkish | tr |
| Turkmen | tk |
| Twi | tw |
| U | |
| Uigur | ug |
| Ukrainian | uk |
| Urdu | ur |
| Uzbek | uz |
| V | |
| Vietnamese | vi |
| Volapuk | vo |
| W | |
| Welsh | cy |
| Wolof | wo |
| X | |
| Xhosa | xh |
| Volapuk | vo |
| Y | |
| Yiddish | yi |
| Yoruba | yo |
| Z | |
| Zhuang | za |
| Zulu | zu |