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Cognomen Rucki (Rucki ) , all over the world, is quite a rare family name. The cognomen Rucki is characteristic of Eastern Europe, particularly Czechia, where it is quite a rare surname, Poland, and Slovakia, where it is a rare surname. Not in comparison with a country's population, it is commonest in Poland, Czechia, and the United States. Also, Rucki is the forename as well as the last name.