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Cognomen Chamko (Chamko , Шамко ) , around the globe, is quite a rare family name. The cognomen Chamko is characteristic of Belarus, where it is quite a rare surname, Cameroon, where it is a rare surname, and Slovakia. Not in comparison with a country's population, this name is the most popular in Eastern Europe, particularly Belarus, Russia, and Ukraine. Much less frequently, Chamko is the forename as well as the last name.