Cognomen Ponhan (Ponhan 
) , all over the world, is a rare last name. The surname Ponhan is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname, Malaysia, where it is a very rare surname, and Philippines, where it is an extremely rare surname.
Sakda, Kittikun, Praewpan, Pisuttron, Laddawan, Janyaporn, Theppitak, Nantakorn, Waraporn, Saranporn, Sutthinee, Chonticha, Pornnimit, Ratchapon, Tanongsak, Thanapong, Watcharee, Yarnnaphat, Benjawan, Aungkana, Supapipat, Surachet, Susan, Supot, Araya, Kowit, Narin, Samuel, Piriya, Muanfan, Pipittaporn, Sorasak, Chatree, Kantima, Kraiwan, Paweena, Prathan, Jaruporn, Nareeya, Wanvisa, Amonrat, and Chalermkiat