Last name คุณไพโรจน์ (คุณไพโรจน์ 
, Kunpairua , Kunpairoae ) , around the world, is an extremely rare family name. The surname คุณไพโรจน์ is characteristic of South-eastern Asia, particularly Thailand, where it is an extremely rare surname. Also, คุณไพโรจน์ is the forename as well as the last name.