Around the world, Kerja (Kerja 
, Karaja 
, Karajaa ) is quite a rare mostly boy's, but seldom feminine first name. The given name Kerja is habitual in Indonesia, where it is a rare unisex name, India, where it is a very rare principally masculine, but very seldom female name, and Nigeria, where it is an extremely rare masculine name. More frequently, Kerja is the last name as well as the forename.