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Globally, Кейсер (Keiser , Keyser , Кейсер ) is a common gender-neutral first name. The first name Кейсер is characteristic of India, where it is quite a rare gender-neutral name, the Democratic Republic of the Congo, where it is a rare masculine name, and the Dominican Republic. Likewise, Кейсер is the last name as well as the forename.
Кейсер is also a name for the fictitious and mythical characters: Keyser Söze , the character in the 1995 film The Usual Suspects.