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Family name Gilman (Gilman
, Гильман
, Гилман
) , in all the world, is a common last name. The family name Gilman is habitual in Guernsey, where it is quite a common surname, the United States, where it is quite a rare surname, and Jamaica. In absolute terms, it is the most numerous in the United States, the United Kingdom, and Russia. Very seldom, Gilman is the forename as well as the last name.