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Throughout the world, Joska (Joska , Йоска ) is quite a rare unisex forename. The first name Joska is habitual in the Democratic Republic of the Congo, where it is quite a rare unisex name, Czechia, where it is a rare male name, and Croatia, where it is a rare female name. Measured by absolute frequency, it is the most numerous in the Democratic Republic of the Congo, Indonesia, and Czechia. Likewise, Joska is the last name as well as the forename.