Family name Ouwens (Ouwens 
, אובנס 
) , in the world, is quite a rare cognomen. The surname Ouwens is characteristic of Netherlands, where it is quite a rare surname, Belgium, where it is a very rare surname, and Greece. Measured by absolute frequency, this name is the most popular in Netherlands, Indonesia, and Spain.
| VARIANT | COUNTRY |
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| Ouwens | Germany, Canada, Spain, Netherlands, Indonesia |
| אובנס | Israel |
| rutgerus ouwens Dutch philologist, NL (b. 1692) |
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| wilhelmus ouwens 1717-1779; Professor of botany, chemistry and medicine, Franeker. (b. 1717) |
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| pieter ouwens Dutch politician and jurist, NL (b. 1720) |
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| willem ouwens (b. 1717) |
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| rutger ouwens politician (b. 1766) |
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| peter ouwens Dutch scientist and Director of the Java Zoological Museum and Botanical Gardens, NL (b. 1849) |
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eddy ouwens Dutch musician and record producer, NL (b. 1946) |
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| kees ouwens Dutch novelist and poet, NL (b. 1944) |
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| koenraad ouwens BE (b. 1953) |
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| margriet ouwens researcher |
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| klaasjan g ouwens researcher |
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| frederikus josephus ouwens Dutch painter, NL |
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| rutger ouwens |
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| rutgerus ouwens |
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