Family name พสุรัตน์ (Phasurat 
, พสุรัตน์ ) , throughout the world, is a rare last name. The cognomen พสุรัตน์ is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname, and Malaysia, where it is a very rare surname. Much less frequently, พสุรัตน์ is the forename as well as the last name.