Across the world, สมวรรณ (สมวรรณ 
, Somwan 
) is a rare principally feminine, but very seldom boy's first name. The forename สมวรรณ is habitual in South-eastern Asia, particularly Thailand, where it is a rare predominantly feminine, but scarcely male name. Likewise, สมวรรณ is the last name as well as the forename.