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