Worldwide, Демен (Demen 
, Демен 
) is a rare dominantly boy's, but uncommonly feminine first name. The first name Демен is habitual in Azerbaijan, where it is quite a rare masculine name, Kazakhstan, where it is a rare unisex name, and Indonesia, where it is a very rare boy's name. Measured by absolute frequency, it most frequently occurs in Indonesia, Azerbaijan, and India. More frequently, Демен is the last name as well as the forename.