Cognomen קאג'י (Kaji 
, קאג'י 
) , worldwide, is a common surname. The cognomen קאג'י is characteristic of Qatar, where it is quite a common surname, Oman, where it is quite a rare surname, and India. Measured by absolute frequency, the name is most common in India, Saudi Arabia, and Bangladesh. Much less frequently, קאג'י is the forename as well as the last name.