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Family name Leker (Cœur , Leker , Лекер ) , around the world, is quite a rare cognomen. The family name Leker is habitual in Algeria, where it is quite a rare surname, Cameroon, where it is a rare surname, and Kazakhstan. Measured by absolute frequency, the name is most common in Algeria, Cameroon, and the United States. More prevalently, Leker is the forename as well as the last name.