Globally, Jaj (Jaj 
, جاج 
) is quite a common predominantly masculine, but very seldom feminine first name. The first name Jaj is characteristic of Bahrain, where it is quite a rare male name, Oman, where it is a rare masculine name, and India, where it is a rare principally masculine, but scarcely female name. Measured by absolute frequency, this name is the most popular in Southern Asia, particularly India, Pakistan, and Bangladesh. Much less frequently, Jaj is the last name as well as the forename.