In all the world, Yotsuk (ยศศักดิ์ 
, Yotsuk , ยศสุข ) is a rare primarily masculine, but very seldom girly given name. The first name Yotsuk is characteristic of South-eastern Asia, particularly Thailand, where it is a rare principally boy's, but very infrequently girly name. Much less frequently, Yotsuk is the last name as well as the forename.