Cognomen Haart (Hart 
, Haart 
) , around the globe, is a widespread last name. The surname Haart is characteristic of British Virgin Islands, where it is a common surname, Aruba, where it is quite a common surname, and Guernsey (explore the name in all countries). Not in comparison with a country's population, the name is most common in the United States, the United Kingdom, and Australia. Very seldom, Haart is the forename as well as the last name.
| johannes de haart Dutch painter, art collector, NL (b. 1793) |
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| julia haart American fashion designer, and entrepreneur, US (b. 1971) |
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| dorothee haart DE (b. 1962) |
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| otto johannes adriaan de haart Matheseos et Philosophiae naturalis Doctor Universiteit Utrecht 1868 |
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