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Surname Hollar (Hollar , Холлар ) , throughout the world, is quite a rare last name. The surname Hollar is characteristic of the United States, where it is quite a rare surname, Hungary, where it is a rare surname, and Israel. Measured by absolute frequency, it is the most numerous in the United States, India, and Canada. Very seldom, Hollar is the forename as well as the last name.