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In all the world, Karolka (Karolka ) is a very rare female forename. The given name Karolka is characteristic of Eastern Europe, particularly Poland, where it is a rare feminine name. Very seldom, Karolka is the last name as well as the forename.
Karolka is also a name for the fictitious and mythical characters: Karolka , the operatic character in the opera Jenůfa by Leoš Janáček.