Surname Oetelaar (Oetelaar 
) , in all the world, is a rare family name. The cognomen Oetelaar is habitual in Netherlands, where it is quite a rare surname, Belgium, where it is a rare surname, and Canada, where it is a very rare surname.
| VARIANT | COUNTRY |
|---|---|
| Oetelaar | Netherlands, Belgium, Canada, Italy, Germany |
| wilhelmina francisca johanna maria van den oetelaar researcher (ORCID 0000-0001-8404-4171) |
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| leon c a van den oetelaar researcher |
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| garrett oetelaar researcher |
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| joris van den oetelaar (b. 1983) |
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