Last name จรุงวงศ์ (จรุงวงศ์ 
, Jarungwong ) , in the world, is a very rare surname. The family name จรุงวงศ์ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. Very seldom, จรุงวงศ์ is the forename as well as the last name.