Family name Phetbuasak (Phetbuasak 
) , all over the world, is a very rare cognomen. The surname Phetbuasak is characteristic of Thailand, where it is a very rare surname, and the United States, where it is an extremely rare surname.
Ajaree, Pensiri, Penpatch, Pongsorn, Weerayudth, and Natthanitcha