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Last name Roska (Roska , Rosk , Râșca) , around the globe, is quite a rare family name. The last name Roska is characteristic of North Macedonia, where it is quite a common surname, Norway, where it is quite a rare surname, and Hungary. Not in comparison with a country's population, it most frequently occurs in Philippines, North Macedonia, and Indonesia. Also, Roska is the forename as well as the last name.