In all the world, วัชชัย (วัชชัย 
, Watchai , Wattchai) is a very rare dominantly male, but seldom female forename. The forename วัชชัย is habitual in South-eastern Asia, particularly Thailand, where it is a very rare largely masculine, but infrequently female name. Much less frequently, วัชชัย is the last name as well as the forename.