Family name วิชิตวงศ์ (วิชิตวงศ์ 
, Wichitwong ) , in all the world, is a rare cognomen. The family name วิชิตวงศ์ is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname. Also, วิชิตวงศ์ is the forename as well as the last name.