Last name โพธิ์ศักดิ์ (Phosak 
, Phaosak 
, Phoosak ) , in the world, is a very rare surname. The surname โพธิ์ศักดิ์ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. More frequently, โพธิ์ศักดิ์ is the forename as well as the last name.