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Last name Nonno (Nono , Nonno , ノンノ ) , all over the world, is a common cognomen. The surname Nonno is habitual in Sub-Saharan Africa, particularly Cameroon, where it is quite a common surname, Lesotho, and Botswana, where it is quite a rare surname. Not in comparison with a country's population, it is commonest in Cameroon, Philippines, and Indonesia. Likewise, Nonno is the forename as well as the last name.