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Cognomen Janga (Janga ) , in the entire world, is a common last name. The surname Janga is characteristic of Curacao, where it is a common surname, Aruba, where it is quite a common surname, and Zimbabwe, where it is quite a rare surname. Not in comparison with a country's population, it is the most numerous in India, Tanzania, and Zimbabwe. Likewise, Janga is the forename as well as the last name.