Cognomen Jansen (Jansen 
, Янсен 
, يانسن 
, among others...) , around the world, is a widespread last name. The surname Jansen is habitual in Curacao, where it is a common surname, Netherlands, and Aruba (explore the name in all countries). Not in comparison with a country's population, this name is the most popular in Netherlands, Germany, and South Africa. Much less frequently, Jansen is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Jansen | Germany, Indonesia, South Africa, United States, Netherlands |
| Янсен | Russia, Ukraine |
| يانسن | Palestinian Territory, Egypt |
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cornelius jansen Bishop of Ghent, NL (b. 1510) |
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cornelius otto jansenius Bishop and theologian (1585-1638), NL (b. 1585) |
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| simon jansen (b. 1580) |
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| zacharias jansen (b. 1588) |
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| hans hendrik jansen Dutch printmaker, NL (b. 1605) |
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| okke jansen NL (b. 1600) |
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| heinrich jansen painter from Denmark, DE (b. 1625) |
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| johannes jansen Mayor of New York City, US (b. 1665) |
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| henri j. jansen Jansen, Hendrik, 1741-1812, FR (b. 1741) |
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| rasmus jansen (1746-1827) (b. 1746) |
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| jacobus jansen NL (b. 1742) |
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| johann ferdinand jansen German painter (1758-1834), DE (b. 1758) |
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| johann matthias jansen DE (b. 1751) |
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| willem xaver jansen (b. 1760) |
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| franz xaver jansen (b. 1760) |
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