Family name วัฒนเมธี (วัฒนเมธี 
, Wattanametee ) , all over the world, is a very rare cognomen. The family name วัฒนเมธี is habitual in South-eastern Asia, particularly Thailand, where it is a very rare surname. Much less frequently, วัฒนเมธี is the forename as well as the last name.