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Cognomen Kyson (Kyson , كايسون, קייסון ) , globally, is a very rare last name. The cognomen Kyson is characteristic of the United Kingdom, where it is a very rare surname, New Zealand, and Australia. Measured by absolute frequency, it is the most numerous in the United Kingdom, the United States, and Australia. Likewise, Kyson is the forename as well as the last name.