Last name พิทักษ์คุณ (Phitchakhun 
, พิทักษ์คุณ, Pithangkoon ) , around the world, is an extremely rare cognomen. The cognomen พิทักษ์คุณ is habitual in South-eastern Asia, particularly Thailand, where it is an extremely rare surname. Likewise, พิทักษ์คุณ is the forename as well as the last name.