Cognomen Kasemsug (Kasemsug 
) , across the world, is a very rare last name. The surname Kasemsug is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. Very seldom, Kasemsug is the forename as well as the last name.
Kalaya, Phearpitcha, Somchai, Phinyapat, and Phraepitcha