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Surname Костка (Kostka , Kotska , Костка ) , worldwide, is a common cognomen. The surname Костка is characteristic of Eastern Europe, particularly Czechia, where it is quite a common surname, Slovakia, and Poland, where it is quite a rare surname. Measured by absolute frequency, the name is most common in Poland, Czechia, and Germany. Also, Костка is the forename as well as the last name.