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Family name Polko (Polka , Polko , Полько ) , around the globe, is quite a rare last name. The surname Polko is characteristic of Eastern Europe, particularly Slovakia, where it is quite a rare surname, Poland, and Czechia. Measured by absolute frequency, it is the most numerous in the United States, India, and Poland. Much less frequently, Polko is the forename as well as the last name.