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Cognomen Sabu (Sabu , サブ , سابو ) , across the world, is a common surname. The cognomen Sabu is characteristic of Western Asia, particularly United Arab Emirates, where it is quite a common surname, Oman, where it is quite a rare surname, and Bahrain. In absolute terms, this name is the most popular in India, Bangladesh, and Indonesia. More frequently, Sabu is the forename as well as the last name.