Last name วงษ์วิโรจน์ (วงษ์วิโรจน์ 
) , all over the world, is a rare cognomen. The last name วงษ์วิโรจน์ is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname. Much less frequently, วงษ์วิโรจน์ is the forename as well as the last name.