Cognomen สิงห์ศักดิ์ (สิงห์ศักดิ์ 
) , around the globe, is a very rare family name. The surname สิงห์ศักดิ์ is characteristic of South-eastern Asia, particularly Thailand, where it is a very rare surname. Also, สิงห์ศักดิ์ is the forename as well as the last name.