Cognomen วุฒิจักร (วุฒิจักร 
, Wuttijak , Wutwijak) , in all the world, is a very rare surname. The family name วุฒิจักร is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. More prevalently, วุฒิจักร is the forename as well as the last name.