In the entire world, Thongthai (ธงไทย 
, Thongthai 
, ธงไท ) is a rare primarily male, but scarcely feminine forename. The first name Thongthai is characteristic of South-eastern Asia, particularly Thailand, where it is a rare principally male, but very seldom female name. Likewise, Thongthai is the last name as well as the forename.