Thai Family History
Thai Surname Meaning
Vietnamese: from the Chinese surname 邰 see Tai Vietnamese: variant of Sái see Sai.
Cambodian: written ថៃ possibly of Vietnamese origin (see above). The surname ថៃ also corresponds to the Khmer ethnic name for a Thai (Siamese).
Chinese: variant Romanization of the surname 蔡 see Cai.
Chinese: variant Romanization of the surname 戴 see Dai.
Source: Dictionary of American Family Names 2nd edition, 2022
