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Cognomen Laison (Laison ) , in the entire world, is quite a rare surname. The cognomen Laison is habitual in Tanzania, where it is quite a rare surname, Malaysia, where it is a rare surname, and Philippines, where it is a very rare surname. Not in comparison with a country's population, it is the most numerous in Tanzania, Indonesia, and Philippines. Also, Laison is the forename as well as the last name.