Cognomen พิรุณพันธ์ (Pirunphan 
, Piroonpan , พิรุณพันธ์ ) , around the world, is a very rare family name. The surname พิรุณพันธ์ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Likewise, พิรุณพันธ์ is the forename as well as the last name.