Around the globe, 잠 (Djam 
, 잠) is quite a rare gender-neutral forename. The first name 잠 is characteristic of Algeria, where it is quite a rare epicene name, Cameroon, and France, where it is a rare unisex name. Measured by absolute frequency, it most frequently occurs in Algeria, Indonesia, and Cameroon. Likewise, 잠 is the last name as well as the forename.