Cognomen جیل (Jill 
, Jail 
, جیل) , in the entire world, is a common family name. The family name جیل is habitual in Malaysia, where it is quite a common surname, Luxembourg, where it is quite a rare surname, and Morocco. In absolute terms, it most frequently occurs in Malaysia, Indonesia, and Nigeria. Predominantly, جیل is the forename as well as the last name.