Surname วัชรารัตน์ (วัชรารัตน์ 
, Watchararat ) , in the world, is a very rare family name. The family name วัชรารัตน์ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. More prevalently, วัชรารัตน์ is the forename as well as the last name.