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Last name Sielska (Sielska
) , in all the world, is a rare cognomen. The family name Sielska is habitual in Poland, where it is quite a rare surname, the United Kingdom, where it is a very rare surname, and Canada, where it is an extremely rare surname. Not in comparison with a country's population, it is the most numerous in Poland, the United Kingdom, and the United States. More frequently, Sielska is the forename as well as the last name.