Cognomen Thongkhum (Thongkhum 
) , in the world, is a rare family name. The family name Thongkhum is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname. Much less frequently, Thongkhum is the forename as well as the last name.
Amon, Pimsiri, Pimlada, Rattiya, Jaithip, Jiropas, Nittaya, Siriporn, Siripond, Sirawich, Suneerat, Supaporn, Supitcha, Anuphong, Chadarat, Boonsroem, Kanchana, Pantawan, Gunyavee, Tananuwat, Taveewat, Thitamon, Popthon, Peerata, Kingdow, Chuchai, Onta, Saree, Suree, Kasem, Jarun, Walee, Boonya, Patima, Peraya, Pichet, Noppadet, Jaruek, Yuphin, Sunaree, Supansa, Srisuda, Areerak, Amonrat, Athaporn, Chaiyan, Chalaew, Chadayu, Oranee, and Manussanun