Cognomen วัฒนบูรณ์ (Wattanaboon 
, วัฒนบูรณ์ ) , across the world, is a very rare last name. The surname วัฒนบูรณ์ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Much less frequently, วัฒนบูรณ์ is the forename as well as the last name.