Surname Knoops (Knoops 
) , across the world, is quite a rare family name. The cognomen Knoops is habitual in Reunion, where it is quite a common surname, Netherlands, where it is quite a rare surname, and Belgium.
| VARIANT | COUNTRY |
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| Knoops | Germany, Netherlands, United States, Belgium, Reunion |
| fredericus johannes knoops DE (b. 1891) |
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| étienne knoops Belgian politician, BE (b. 1934) |
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| frits knoops cyclist, NL (b. 1937) |
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| geert-jan knoops Dutch lawyer and jurist, NL (b. 1960) |
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| marie-hélène knoops Belgian politician, BE (b. 1969) |
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| harm knoops researcher |
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| johannes knoops American architect, US |
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| arnoud j g knoops researcher |
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| edith b. f. g. knoops particle physicist in France |
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| kèvin knoops researcher |
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| paul g m knoops researcher |
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| lieke knoops |
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| martin knoops |
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