Family name 伊斯 (Ys 
, 伊斯 
) , around the globe, is a common surname. The family name 伊斯 is characteristic of Brunei, where it is quite a common surname, Syria, where it is quite a rare surname, and Indonesia. In absolute terms, it is commonest in Indonesia, Syria, and Morocco. Also, 伊斯 is the forename as well as the last name.