| Name | Other Name | Family | Nativ Name | ISO6391 Code | ISO6392T Code | ISO6392B Code | ISO6393 Code | Notes |
|---|---|---|---|---|---|---|---|---|
| Chamorro | Austronesian | Chamoru | ch | cha | cha | cha | ||
| Czech | Indo-European | čeština; český jazyk | cs | ces | cze | ces | ||
| Catalan | Valencian | Indo-European | català; valencià | ca | cat | cat | cat | |
| Bulgarian | Indo-European | български език | bg | bul | bul | bul | ||
| Breton | Indo-European | brezhoneg | br | bre | bre | bre | ||
| Bosnian | Indo-European | bosanski jezik | bs | bos | bos | bos | ||
| Tibetan | Sino-Tibetan | བོད་ཡིག | bo | bod | tib | bod | also known as Standard Tibetan | |
| Bislama | Creole | Bislama | bi | bis | bis | bis | Language formed from English and Ni-Vanuatu; with some French influence. | |
| Bengali | Indo-European | বাংলা | bn | ben | ben | ben | also known as Bangla | |
| Belarusian | Indo-European | беларуская мова | be | bel | bel | bel |