Cognomen วัฒนวรรณ (Wattanawan 
, วัฒนวรรณ , Watanawan ) , throughout the world, is a very rare surname. The surname วัฒนวรรณ is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Also, วัฒนวรรณ is the forename as well as the last name.