Family name พันธ์วัฒน์ (พันธ์วัฒน์ 
, Phanwatsa , Phanvatr ) , worldwide, is a very rare surname. The family name พันธ์วัฒน์ is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname. Very seldom, พันธ์วัฒน์ is the forename as well as the last name.