Throughout the world, Zelka (Zelka 
) is a rare epicene first name. The given name Zelka is habitual in Israel, where it is a rare dominantly boy's, but uncommonly female name, Ethiopia, where it is a rare epicene name, and Australia, where it is a very rare feminine name. Measured by absolute frequency, it most frequently occurs in Ethiopia, Israel, and Indonesia. Likewise, Zelka is the last name as well as the forename.