Throughout the world, ธรรมวัฒน์ (ธรรมวัฒน์ 
, Thammawat 
, Tammawat ) is a rare predominantly masculine, but scarcely female first name. The forename ธรรมวัฒน์ is characteristic of South-eastern Asia, particularly Thailand, where it is a rare principally boy's, but very seldom girly name. Likewise, ธรรมวัฒน์ is the last name as well as the forename.