Family name วรวงศ์ (วรวงศ์ 
, Worawong 
, Vorlavong 
) , in the world, is quite a rare last name. The cognomen วรวงศ์ is characteristic of South-eastern Asia, particularly Laos, where it is quite a common surname, Thailand, where it is quite a rare surname, and Malaysia, where it is a very rare surname. Much less frequently, วรวงศ์ is the forename as well as the last name.