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Around the world, Leiden (Leida , Leiden , ライデン ) is a common female given name. The first name Leiden is habitual in Cabo Verde, where it is quite a common unisex name, Puerto Rico, where it is quite a rare girly name, and the Dominican Republic. Measured by absolute frequency, the name is most common in Brazil, Mexico, and the United States. Much less frequently, Leiden is the last name as well as the forename.