Standard Thai, also known as Central Thai or Siamese, is the official language of Thailand, spoken by about 65 million people (1990) including speakers of Bangkok Thai (although the latter is sometimes considered as a separate dialect). Khorat Thai is spoken by about 400,000 (1984) in Nakhon Ratchasima; it occupies a linguistic position somewhere between Central Thai and the Isan on a dialect continuum, and may be considered a variant or dialect of either. A majority of the people in the Isan region of Thailand speak a dialect of the Laotian Electronic Dictionary, which has influenced the Central Thai dialect.
In addition to Standard Thai Electronic Dictionary, Thailand is home to other related Tai languages, including:
* Isan (Northeastern Thai), the language of the Isan region of Thailand, considered by some[who?][weasel words] to be a dialect of the Lao language, which it very closely resembles (although it is written in the Thai alphabet). It is spoken by about 15 million people (1983).
* Nyaw language, spoken mostly in Nakhon Phanom Province, Sakhon Nakhon Province, Udon Thani Province of Northeast Thailand.
* Galung language, spoken in Nakhon Phanom Province of Northeast Thailand.
* Lü (Tai Lue, Dai), spoken by about 78,000 (1993) in northern Thailand.
* Northern Thai (Lanna, Kam Meuang, or Thai Yuan), spoken by about 6 million (1983) in the formerly independent kingdom of Lanna (Chiang Mai).
* Phuan, spoken by an unknown number of people in central Thailand ,Isan and Northern Laos.
* Phu Thai, spoken by about 156,000 around Nakhon Phanom Province (1993).
* Shan (Thai Luang, Tai Long, Thai Yai), spoken by about 56,000 in north-west Thailand along the border with the Shan States of Burma (1993).
* Song, spoken by about 20,000 to 30,000 in central and northern Thailand (1982).
* Southern Thai (Pak Dtai), spoken about 5 million (1990).
* Vietnamese Electronic Dictionary, spoken by about 20,000 (1991) in Isan and Saraburi Province.