Family name ผกาสิทธิ์ (ผกาสิทธิ์ 
) , across the world, is a very rare surname. The surname ผกาสิทธิ์ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. Likewise, ผกาสิทธิ์ is the forename as well as the last name.