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All over the world, קפלר (Kepler , Keffer , Kapler ) is quite a rare largely male, but infrequently feminine first name. The given name קפלר is characteristic of the Democratic Republic of the Congo, where it is a rare gender-neutral name, Peru, where it is a rare male name, and Australia, where it is a very rare male name. Not in comparison with a country's population, it is the most numerous in the Democratic Republic of the Congo, Peru, and Indonesia. More frequently, קפלר is the last name as well as the forename.
קפלר is also a name for the fictitious and mythical characters: Kepler , the fictional character appearing in the movie « L'Œil de l'astronome ».