Cognomen โรจน์รักษ์ (โรจน์รักษ์ 
) , across the world, is a very rare last name. The surname โรจน์รักษ์ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. Much less frequently, โรจน์รักษ์ is the forename as well as the last name.