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Cognomen Aker (Aker
, Acer
, 阿克
) , all over the world, is a common surname. The surname Aker is habitual in Turkey, where it is quite a common surname, Norway, where it is quite a rare surname, and Liberia. In absolute terms, it is the most numerous in Turkey, the United States, and Nigeria. Very seldom, Aker is the forename as well as the last name.