Surname Pairat (ไพรัช 
, ไพรัตน์ , Pairat 
) , in the world, is quite a rare family name. The cognomen Pairat is characteristic of South-eastern Asia, particularly Thailand, where it is quite a rare surname, Philippines, and Malaysia, where it is a very rare surname. More frequently, Pairat is the forename as well as the last name.