Last name Knapper (Knapper 
) , around the world, is quite a rare surname. The family name Knapper is habitual in Netherlands, where it is quite a rare surname, the United Kingdom, where it is a rare surname, and Norway. In absolute terms, it is commonest in the United States, the United Kingdom, and Netherlands.
| VARIANT | COUNTRY |
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| Knapper | Netherlands, Canada, United States, United Kingdom, Germany |
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nico knapper Dutch singer and television director, NL (b. 1934) |
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marc knapper American diplomat |
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| joseph t knapper researcher |
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| steven knapper researcher |
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| joe knapper researcher |
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| brandon knapper college basketball player (2019–2020) West Virginia |
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| christiaan knapper Ph.D. Universiteit van Amsterdam 1925 |
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| carys knapper researcher |
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| thomas d knapper researcher (ORCID 0000-0003-0408-1189) |
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| kassandra a knapper researcher (ORCID 0000-0001-5171-5792) |
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| andrew knapper British lawn bowler, GB (b. 1981) |
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| george knapper (b. 1993) |
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