Cognomen Haselen (Haselen 
) , in the world, is a very rare last name. The family name Haselen is habitual in Netherlands, where it is a rare surname, Germany, where it is an extremely rare surname, and the United States. Very seldom, Haselen is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Haselen | Germany, Philippines, Brazil, United States, Netherlands |
| wijnard van haselen Dutch photographer, NL (b. 1883) |
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| robert van haselen researcher |
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| albertus van haselen Ph.D. Universiteit Utrecht 1929 |
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| a.a. van haselen |
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