Family name Kwanmanat (Kwanmanat 
) , all over the world, is an extremely rare surname. The family name Kwanmanat is characteristic of South-eastern Asia, particularly Malaysia, where it is an extremely rare surname, and Thailand. More frequently, Kwanmanat is the forename as well as the last name.
Kuson, Mitsuphun, Ubolban, Issarasoontorn, and Thammasatta