Cognomen อรัญศักดิ์ (อรัญศักดิ์ 
, Aransak ) , all around the world, is a rare surname. The family name อรัญศักดิ์ is characteristic of South-eastern Asia, particularly Thailand, where it is a rare surname. Much less frequently, อรัญศักดิ์ is the forename as well as the last name.