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Family name สุทธาวรรณ (สุทธาวรรณ , Sutthawan
, Sudthawan
) , in the world, is a very rare last name. The surname สุทธาวรรณ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. More prevalently, สุทธาวรรณ is the forename as well as the last name.