Cognomen ประสิทธิพล (ประสิทธิพล 
, Prasitpol , Prasitpon ) , in the world, is a very rare last name. The cognomen ประสิทธิพล is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. More frequently, ประสิทธิพล is the forename as well as the last name.