The Tai or Zhuang–Tai languages (Thai: ภาษาไท or ภาษาไต, transliteration: p̣hās̛̄āthay or p̣hās̛̄ātay) are a branch of the Kra–Dai language family. The Tai languages include the most widely spoken of the Tai–Kadai languages, including Standard Thai or Siamese, the national language of Thailand; Lao or Laotian, the national language of Laos; Myanmar's Shan language; and Zhuang, a major language in the Southwestern China's Guangxi Zhuang Autonomous Region, spoken by the Zhuang (壯) people, the largest minority ethnic group in China, with a population of 15.55 million, living mainly in Guangxi, the rest scattered across Yunnan, Guangdong, Guizhou and Hunan provinces.