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Cognomen Ngina (Ngina , Нгина ) , in the world, is a common last name. The cognomen Ngina is habitual in Kenya, where it is quite a common surname, Philippines, where it is a rare surname, and Saudi Arabia, where it is a very rare surname. In absolute terms, this name is the most popular in Kenya, Philippines, and Indonesia. Much less frequently, Ngina is the forename as well as the last name.