Cognomen Джуба (Djouba 
, Djuba 
, Джуба 
) , in the world, is a rare surname. The cognomen Джуба is characteristic of Algeria, where it is a rare surname, Estonia, and Indonesia, where it is a very rare surname. Not in comparison with a country's population, it is the most numerous in Indonesia, Algeria, and Brazil. Likewise, Джуба is the forename as well as the last name.