Family name Theesit (Theesit 
) , all over the world, is a very rare last name. The cognomen Theesit is characteristic of Eastern Asia, particularly China, where it is an extremely rare surname. More frequently, Theesit is the forename as well as the last name.
Tathun, Sripech, Yaisurai, Manaswee, Phutikiatkhajorn, Juanpanich, Ueathanapong, and Jirasoponruk