| Language Name | Alternate Language Names | Code | Country |
| Sylheti (Bangla script) | Sileti, Siloti, Srihattia, Sylhetti, Sylhetti Bangla, Syloti, Syloty, Siloti, Srihattia, Sylhetti, Sylhetti Bangla, Syloti, Syloty, Bengali of Cachar, Sylheti Bangla, Sylheti Bengali | syl [655] [g] | Bangladesh, India |
| Sylheti (Nagri script) | Sileti, Siloti, Srihattia, Sylhetti, Sylhetti Bangla, Syloti, Syloty | syl [655] [h] | Bangladesh, India |