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Cognomen Czajka (Czajka , Чайка ) , in all the world, is a common last name. The surname Czajka is characteristic of Eastern Europe, particularly Ukraine, where it is quite a common surname, Poland, and Belarus. In absolute terms, this name is the most popular in Eastern Europe, particularly Ukraine, Russia, and Poland. Likewise, Czajka is the forename as well as the last name.