Cognomen Phittaya (Phittaya 
) , all around the world, is an extremely rare surname. Much more frequently, Phittaya is the forename as well as the last name.
Wirtz, Polpanich, Phongdoung, Taraboot, Thongpim, Yongphom, Chitmanee, Thongkrua, Vannasing, Wongsuwan, Sanohdontree, Aranyaphongphaisan, Phuttaraksa, Jenkhetkarn, Visamitanun, Wongsuriya, Khongiew, Chobtham, Supmanee, Wipakdecha, Ma Amdong, Aiewsuwan, Puamgsuk, Rakprom, Thokul, Ungpinitpong, Sithong, Sribunrueang, Sukkwan, Rumpathong, Dokphikun, Tanavud, Noophet, Noopatch, Neansiri, Hadchum, Chansin, and Wongsuwannakorn