Last name วัฒนสุทธิ์ (Wattanasut 
, วัฒนสุทธิ์ , Vattanasutt ) , all around the world, is a very rare family name. The surname วัฒนสุทธิ์ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. Very seldom, วัฒนสุทธิ์ is the forename as well as the last name.