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Surname Sjaka (Шака , Чака , Sjaka ) , globally, is a rare last name. The last name Sjaka is characteristic of Belarus, where it is quite a rare surname, Ukraine, where it is a rare surname, and Kyrgyzstan, where it is a very rare surname. 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, Sjaka is the forename as well as the last name.