Cognomen สุทธาวรรณ์ (Suttawan 
, สุทธาวรรณ์ ) , all around the world, is a very rare family name. The cognomen สุทธาวรรณ์ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. More prevalently, สุทธาวรรณ์ is the forename as well as the last name.