Worldwide, 赛斯 (Sise 
, 赛斯 
) is a rare epicene forename. The forename 赛斯 is characteristic of Gambia, where it is quite a rare boy's name, Algeria, where it is a rare epicene name, and Georgia, where it is a rare feminine name. Measured by absolute frequency, this name is the most popular in Ethiopia, Algeria, and China. Also, 赛斯 is the last name as well as the forename.