Surname จันทศักดิ์ (Chantasak 
, จันทศักดิ์ , Janthasak ) , all around the world, is a very rare last name. The last name จันทศักดิ์ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. Likewise, จันทศักดิ์ is the forename as well as the last name.