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Family name Poisson (Poisson , Pichon , 波森 ) , across the world, is a common last name. The surname Poisson is characteristic of France, where it is quite a common surname, Jersey, and Mauritius, where it is quite a rare surname. Not in comparison with a country's population, this name is the most popular in France, the United States, and Canada. Much less frequently, Poisson is the forename as well as the last name.