A language of Thailand

Alternate Names
Cuoi, Khamen-Boran, Kui, Kui Souei, Kuoy, Kuuy, Soai, Suai, Suay, Suei, Sui, Suoi

400,000 in Thailand (2006 Mahidol University). Few monolinguals. Total users in all countries: 452,800.


Surin, Buriram, Sisaket, and Ubon Ratchathani provinces: near Cambodian and Laos borders.

Language Status

6b (Threatened).


Chang (Suai Chang), Nheu, Kuay.

Language Use

Positive attitudes. All also use Lao [lao], Northeastern Thai [tts]. Most also use Thai [tha]. Some also use Northern Khmer [kxm], especially older adults.

Language Development
Literacy rate in L2: 50%. Dictionary. NT: 1978–1992.

Khmer script [Khmr], used in Cambodia. Lao script [Laoo], used in Laos. Thai script [Thai].

Other Comments

Kuy villages often intermingled with those of Northern Khmer [kxm], Lao [lao]. Traditional religion, Buddhist, Christian.

Also spoken in:

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