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Surname Галлей (Halley , Galley , Gallei ) , worldwide, is a common cognomen. The cognomen Галлей is characteristic of Aruba, where it is quite a common surname, Ghana, and Togo, where it is quite a rare surname. Not in comparison with a country's population, it is the most numerous in the United States, Ghana, and the United Kingdom. Very seldom, Галлей is the forename as well as the last name.