All over the world, Isso (Isso 
, Иссо 
) is quite a rare epicene forename. The first name Isso is characteristic of Lebanon, where it is a rare feminine name, Algeria, where it is a rare unisex name, and Tanzania, where it is a rare mostly masculine, but seldom feminine name. Measured by absolute frequency, this name is the most popular in Algeria, Tanzania, and India. Also, Isso is the last name as well as the forename.