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Surname Умм (Ummu , Umm , Oumm ) , around the world, is quite a rare cognomen. The cognomen Умм is habitual in Nigeria, where it is quite a rare surname, United Arab Emirates, where it is a rare surname, and Indonesia. Not in comparison with a country's population, it is the most numerous in Nigeria, Indonesia, and India. More prevalently, Умм is the forename as well as the last name.