Cognomen พันธุ์ยุทธ (พันธุ์ยุทธ 
, Phantayut , Phantayuth ) , all over the world, is a very rare family name. The surname พันธุ์ยุทธ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Likewise, พันธุ์ยุทธ is the forename as well as the last name.