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Surname Potocka (Potocka , Потоцкая , Потоцька ) , throughout the world, is quite a common last name. The surname Potocka is characteristic of Eastern Europe, particularly Belarus, where it is quite a rare surname, Poland, and Slovakia. In absolute terms, it is commonest in Eastern Europe, particularly Russia, Ukraine, and Poland. Also, Potocka is the forename as well as the last name.