| name | Ethnologue status | language family | office | IETF | alphabet | ISO 6391 | ISO 6392 | ISO 6393 | speakers (people) | Manuscript | micronation | publisher | former country | is a dialect |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dai people | ||||||||||||||
| Thai language | 1 National | Kra–Dai languages | Royal Society of Thailand | Thai script | th | tha | tha | 70,000,000 | Yes | |||||
| Southern Thai language | 5 Developing | Kra–Dai languages | sou | Thai script | sou | 4,500,000 | Yes | |||||||
| Isan language | 6a Vigorous | Kra–Dai languages | tts | Thai script | tts | 21,000,000 | Yes | |||||||
| Northern Pwo language | 5 Developing | Sino-Tibetan languages | pww | Thai script | pww | 60,000 | Yes |