Cognomen Pongkajorn (Pongkajorn 
) , in the entire world, is a rare last name. The surname Pongkajorn is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname. Much less frequently, Pongkajorn is the forename as well as the last name.
Saran, Somchai, Kompakorn, Pitchapa, Gunticha, Tannatorn, Tuangthong, and Rattanaporn