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Family name Zefa (泽发 , Zefa ) , all over the world, is a rare last name. The surname Zefa is characteristic of Syria, where it is quite a rare surname, Indonesia, where it is a rare surname, and Brazil, where it is a very rare surname. Not in comparison with a country's population, it is commonest in Indonesia, China, and Syria. More prevalently, Zefa is the forename as well as the last name.