| Name | Other Name | Family | Nativ Name | ISO6391 Code | ISO6392T Code | ISO6392B Code | ISO6393 Code | Notes |
|---|---|---|---|---|---|---|---|---|
| Afar | Afro-Asiatic | Afaraf | aa | aar | aar | aar | ||
| Abkhazian | Northwest Caucasian | аҧсуа бызшәа; аҧсшәа | ab | abk | abk | abk | also known as Abkhaz | |
| Afrikaans | Indo-European | Afrikaans | af | afr | afr | afr | ||
| Akan | Niger–Congo | Akan | ak | aka | aka | aka + 2 | macrolanguage; Twi is [tw/twi]; Fanti is [fat] | |
| Amharic | Afro-Asiatic | አማርኛ | am | amh | amh | amh | ||
| Arabic | Afro-Asiatic | العربية | ar | ara | ara | ara + 30 | macrolanguage; Standard Arabic is [arb] | |
| Aragonese | Indo-European | aragonés | an | arg | arg | arg | ||
| Assamese | Indo-European | অসমীয়া | as | asm | asm | asm | ||
| Avaric | Northeast Caucasian | авар мацӀ; магӀарул мацӀ | av | ava | ava | ava | also known as Avar | |
| Avestan | Indo-European | avesta | ae | ave | ave | ave | ancient |