| name | Ethnologue status | language family | office | IETF | alphabet | ISO 6391 | ISO 6392 | ISO 6393 | speakers (people) | Manuscript | micronation | publisher | former country | is a dialect |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Bengali language | 1 National | Indo-European languages | Bengali alphabet | bn | ben | ben | 226,000,000 | Yes | ||||||
| Chakma language | 5 Developing | Indo-European languages | Bengali alphabet | ccp | 330,000 | Yes | ||||||||
| Chittagonian language | 3 Wider Communication | Indo-European languages | ctg | Bengali alphabet | ctg | 13,000,000 | Yes | |||||||
| Deori language | 5 Developing | Sino-Tibetan languages | Bengali alphabet | der | 72,653 | Yes | ||||||||
| Tarao language | 6a Vigorous | Sino-Tibetan languages | tro | Bengali alphabet | tro | 870 | Yes |