Cognomen Penphak (Penphak 
) , all over the world, is an extremely rare last name. Predominantly, Penphak is the forename as well as the last name.
Chumpon, Kaewdee, Klungsri, Jientet, Sucharee, Chumphon, Khokkaew, Suttiphan, Choochuaysuwan, Triphattanakarn, and Kongtongsang