Family name Karantharat (Karantharat 
) , in the world, is an extremely rare cognomen. Much more frequently, Karantharat is the forename as well as the last name.
Saewu, Phichairat, Mueangchai, Termwitkhajorn, Thammawan, Pungpothong, Thawittsri, Ruamrungsee, Piangkam, Changpim, Sanruethai, Sangchan, Jaipang, Ponkeeree, Promsud, Klomjit, Klansuwan, Khambun, Sairutsuree, Wiriya, Jeemawong, Ainchu, Pattanasilp, and Wichitsanguan