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Throughout the world, Deker (Deker
, ديكر
, Декер
) is a rare male forename. The given name Deker is characteristic of the Democratic Republic of the Congo, where it is a rare male name, Bolivia, and Tunisia. Measured by absolute frequency, it is the most numerous in the Democratic Republic of the Congo, Indonesia, and Peru. Likewise, Deker is the last name as well as the forename.
Deker is also a name for the fictitious and mythical characters: .