Last name Karadja (Karadja 
) , worldwide, is a rare surname. The cognomen Karadja is habitual in North Macedonia, where it is quite a rare surname, Albania, where it is a rare surname, and Algeria. Very seldom, Karadja is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Karadja | North Macedonia, Sweden, Albania, Algeria, Afghanistan |
|
mary karadja Swedish writer (1868-1943), SE (b. 1868) |
|
|
constantin karadja Romanian diplomat (1889-1950), RO (b. 1889) |
|
| fatima zohra karadja Algerian diplomat, DZ (b. 1949) |
|