In the entire world, ニス (Nis 
, ニス) is quite a rare epicene forename. The first name ニス is habitual in Morocco, where it is quite a rare largely feminine, but infrequently boy's name, Denmark, where it is quite a rare boy's name, and Algeria, where it is quite a rare unisex name. Measured by absolute frequency, the name is most common in Indonesia, India, and Morocco. Likewise, ニス is the last name as well as the forename.