Surname ยิ่งสุข (Yingsuk 
, Yingsook , ยิ่งสุข) , worldwide, is a very rare cognomen. The last name ยิ่งสุข is habitual in Thailand, where it is a very rare surname, and the United States, where it is an extremely rare surname. Very seldom, ยิ่งสุข is the forename as well as the last name.