Family name Knappenberger (Knappenberger 
) , in the world, is a rare cognomen. The last name Knappenberger is characteristic of the United States, where it is a rare surname, Germany, and Canada, where it is a very rare surname.
| VARIANT | COUNTRY |
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| Knappenberger | United Kingdom, Germany, United States, Canada |
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brian knappenberger filmmaker, US (b. 1953) |
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| alton w. knappenberger Medal of Honor recipient, US (b. 1923) |
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| thorsten knappenberger researcher |
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| jonathan charles knappenberger Ph.D. Temple University 1993 |
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| h. allan knappenberger Ph.D. North Carolina State University 1966 |
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| andrew john knappenberger researcher |
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| kenneth l knappenberger chemistry researcher |
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| evan knappenberger American historian & writer, US (b. 1985) |
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| paul c. knappenberger |
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