Cognomen Duenphen (Duenphen 
) , around the globe, is an extremely rare last name. The last name Duenphen is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname. Much more frequently, Duenphen is the forename as well as the last name.
Jinda, Mettaprasert, Thammalikhit, Chunhaphong, Mathurosphongphan, Wongsasuk, Phengphom, Phutkhuntod, Mettraprasert, Pongdaeng, Promphuck, Krodkaew, Pongprasert, Achapramote, Suepsorsamer, Sinothok, Sasomsup, Sangjinda, Wongrat, Tongtip, Hamada, Gonnot, Srikum, Saelim, Tarya, Srisurat, and Saengphaithun