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Surname Hayler (Hayler , 海勒 , Гайлер ) , in the world, is quite a rare cognomen. The surname Hayler is habitual in the United Kingdom, where it is quite a rare surname, Norway, where it is a rare surname, and Australia. Measured by absolute frequency, it is commonest in the United Kingdom, Australia, and Germany. Much less frequently, Hayler is the forename as well as the last name.