Surname Phattanasak (Phattanasak 
) , across the world, is an extremely rare cognomen. The last name Phattanasak is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. More frequently, Phattanasak is the forename as well as the last name.
Bunmi, Deerod, Takaew, Sangjun, Singsai, Butsaen, Nualming, Eramsawang, Ampanrat, Chonchom, Pansomboon, Phetkachonwong, Sirisuwan, Phikunkhao, Theangsuntitam, and Tunyaphataraphong