Surname Dadja (Dadja 
) , all around the world, is a rare last name. The surname Dadja is habitual in Togo, where it is quite a rare surname, France, where it is an extremely rare surname, and Philippines. Not in comparison with a country's population, it most frequently occurs in Togo, Philippines, and the United States. More prevalently, Dadja is the forename as well as the last name.