Last name เทพศักดิ์ (เทพศักดิ์ 
, Thepsak , Theadsak ) , around the world, is a rare cognomen. The cognomen เทพศักดิ์ is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname. Likewise, เทพศักดิ์ is the forename as well as the last name.