Cognomen Froyen (Froyen 
) , throughout the world, is a rare last name. The family name Froyen is characteristic of Belgium, where it is quite a rare surname, Norway, and Netherlands, where it is a very rare surname. In absolute terms, it is the most numerous in Belgium, Norway, and the United States.
| VARIANT | COUNTRY |
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| Froyen | Norway, Belgium, United States, Argentina, Netherlands |
| fernand froyen BE (b. 1921) |
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| richard thomas froyen Ph.D. University of Maryland College Park 1972 |
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| erik froyen researcher |
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| guy froyen researcher |
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| ludo froyen researcher |
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| ferly froyen BE |
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Mr, Lode, Ludo, Tony, Toni, Nele, Elke, Edie, Eden, Eddy, Eric, Erik, Emmy, Harm, Hugo, Vera, Inge, Winy, Marie, Milan, Mieke, Santy, Lisa, Leif, Gail, Dirk, Ms, Ben, Bob, Raf, Ron, Ria, Guy, Lut, Jan, Jos, Siebe, Tom, Bart, Bill, Kurt, Kris, Kyle, Piet, Rene, Dean, Davy, Daan, Arne, and Sonja