>
Surname Kadja (Kadja ) , worldwide, is quite a rare cognomen. The last name Kadja is habitual in Sub-Saharan Africa, particularly Ivory Coast, where it is quite a rare surname, Benin, and Senegal, where it is a rare surname. Measured by absolute frequency, it is commonest in Ivory Coast, Indonesia, and Benin. Much less frequently, Kadja is the forename as well as the last name.