Thai is the national and official language of Thailand and the native language of the Thai people, Thailand's dominant ethnic group.
Many of these languages are spoken by larger numbers of people outside of Thailand. Most speakers of dialects and minority languages speak Central Thai as well, since it is the language used in schools and universities all across the kingdom.
Numerous languages not related to Thai are spoken within Thailand by ethnic minority hill tribespeople. These languages include Hmong-Mien (Yao), Karen, Lisu, and others.