Surname Oelhaf (Oelhaf 
) , all over the world, is a rare last name. The surname Oelhaf is characteristic of Western Europe, particularly Germany, where it is a rare surname, Switzerland, where it is a very rare surname, and France.
| joachim oelhaf German physician and university professor, PL (b. 1570) |
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| peter oelhaf German jurist and historian, DE (b. 1599) |
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| mikołaj oelhaf botanist (1604-1643), PL (b. 1604) |
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| hermann oelhaf researcher |
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