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All over the world, Plessis (Plessis , Плесси ) is a rare gender-neutral forename. The given name Plessis is characteristic of the Democratic Republic of the Congo, where it is a rare gender-neutral name, and France, where it is a very rare gender-neutral name. Much more frequently, Plessis is the last name as well as the forename.
Plessis is also a name for the fictitious and mythical characters: .