In the world, 올 (Ol 
, 올) is quite a rare epicene forename. The first name 올 is habitual in Tunisia, where it is quite a rare predominantly female, but very seldom male name, Albania, where it is quite a rare unisex name, and Hong Kong. Measured by absolute frequency, the name is most common in Tunisia, Indonesia, and India. Likewise, 올 is the last name as well as the forename.