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Last name Dayson (Dayson , Даысон ) , around the world, is quite a rare cognomen. The family name Dayson is characteristic of Philippines, where it is quite a rare surname, United Arab Emirates, where it is a rare surname, and the United Kingdom. Measured by absolute frequency, this name is the most popular in Philippines, the United States, and the United Kingdom. Also, Dayson is the forename as well as the last name.