Throughout the world, Yosthasak (ยศศักดิ์ 
, Yosthasak ) is a rare principally male, but scarcely girly forename. The given name Yosthasak is habitual in South-eastern Asia, particularly Thailand, where it is a rare predominantly male, but very infrequently girly name. Very seldom, Yosthasak is the last name as well as the forename.