Last name พุทธสิทธิ์ (พุทธสิทธิ์ 
, Phutthasit) , in all the world, is a very rare surname. The last name พุทธสิทธิ์ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Likewise, พุทธสิทธิ์ is the forename as well as the last name.