Last name วงศ์เมธา (วงศ์เมธา 
, Wongmaytha ) , all over the world, is a very rare cognomen. The last name วงศ์เมธา is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. Much less frequently, วงศ์เมธา is the forename as well as the last name.