The Tai languages ( transliteration: ) are a subgroup of the Kradai language family. The Tai languages include the most widely spoken of the Tai-Kadai languages, including standard Thai, the national language of Thailand, Lao or Laotian, the national language of Laos, Myanmar's Shan language, and Zhuang, a major language in southern Chinese province of Guangxi.

• Northern Tai languages

• * Saek (Laos)

• * Yay (Thailand)

• * Northern Zhuang (China)

• * Bouyei (Buyi) (China)

• * Tai Mène (Laos)

• * E (China)

• Central Tai languages

• * Southern Zhuang (China)

• * Man Cao Lan (Vietnam)

• * Nung (Vietnam)

• * Tày (Tho) (Vietnam)

• * Ts'ün-Lao (Vietnam)

• * Nhang (Vietnam)

• Southwestern Tai languages (32)

• * Tai Ya (China)

• * Pu Ko (Laos)

• * Pa Di (China)

• * Tai Thanh (Vietnam)

• * Tày Sa Pa (Vietnam)

• * Tai Long (Laos)

• * Tai Hongjin (China)

• * Turung (India)

• * Yong (Thailand)

• * Southern Thai (Pak Thai) (Thailand)

• * East Central Tai languages (10)

• ** Chiang Saen languages (10)

• *** Tai Dam (Vietnam)

• *** Northern Thai (Lanna, Thai Yuan) (Thailand, Laos)

• *** Phuan (Thailand)

• *** Thai Song (Thailand)

• *** Thai (Thailand)

• *** Tai Hang Tong (Vietnam)

• *** Tai Dón (Vietnam)

• *** Tai Daeng (Vietnam)

• *** Tay Tac (Vietnam)

• *** Thu Lao (Vietnam)

• ** Lao-Phutai languages (4)

• *** Lao (Laos)

• *** Nyaw (Thailand)

• *** Phu Thai (Thailand)

• *** Isan (Northeastern Thai) (Thailand, Laos)

• ** Northwestern Tai languages (9)

• *** Ahom (Assam - extinct. Modern Assamese is Indo-European.)

• *** Aiton (Assam)

• *** Lü (Lue, Tai Lue) (China, Vietnam, Thailand, Laos, Myanmar)

• *** Khamti (Assam, Myanmar)

• *** Khün (Myanmar)

• *** Khamyang (Assam)

• *** Phake (Assam)

• *** Shan (Myanmar)

• *** Tai Nüa (China, Vietnam, Thailand, Laos)

Comparison table