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Surname Hattam (Hattam
) , in the world, is a rare last name. The family name Hattam is habitual in Isle of Man, where it is quite a rare surname, Australia, where it is a rare surname, and New Zealand. Not in comparison with a country's population, this name is the most popular in the United Kingdom, Australia, and Iraq. Much less frequently, Hattam is the forename as well as the last name.