Worldwide, Glis (Glaise 
, Glis 
, Gliro 
) is quite a rare epicene forename. The first name Glis is habitual in the Democratic Republic of the Congo, where it is quite a rare unisex name, Brazil, where it is a very rare female name, and Philippines, where it is a very rare unisex name. Likewise, Glis is the last name as well as the forename.