Surname Hadja (Hadja 
, هاديا 
, Хаджа 
) , globally, is quite a common last name. The last name Hadja is characteristic of Cameroon, where it is quite a common surname, Algeria, where it is quite a rare surname, and Albania. In absolute terms, it most frequently occurs in Cameroon, Algeria, and Philippines. More prevalently, Hadja is the forename as well as the last name.