Last name บุญญวัฒน์ (Bunyawat 
, บุญญวัฒน์ ) , in the entire world, is a rare surname. The surname บุญญวัฒน์ is habitual in South-eastern Asia, particularly Thailand, where it is a rare surname, and Malaysia, where it is an extremely rare surname. More frequently, บุญญวัฒน์ is the forename as well as the last name.