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Cognomen Alcock (الكوك , Alcock , Алкок) , in the world, is a common surname. The family name Alcock is habitual in Namibia, where it is quite a common surname, the United Kingdom, where it is quite a rare surname, and Jamaica. Measured by absolute frequency, it is commonest in the United Kingdom, the United States, and Australia. Very seldom, Alcock is the forename as well as the last name.