Cognomen Benjaphorn (Benjaphorn 
) , around the world, is an extremely rare family name. The last name Benjaphorn is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname. Much more frequently, Benjaphorn is the forename as well as the last name.
Kumrai, Chotrungrote, Phinitkarn, Pichitmarn, Monphaneewong, Thitathan, Jenwatthanasirichai, Phatubuthra, Promsopha, Praditkul, Boonmuang, Sathornlux, Monphaneevong, Nilmanee, Duangteja, Promphan, Kaewpasit, Ampanyao, Nilsing, Khuanngern, Inngam, Pakwan, Benjathammathorn, and Thammachatpimol