Surname Posthoff (Posthoff 
) , throughout the world, is a very rare cognomen. The cognomen Posthoff is habitual in Germany, where it is a very rare surname, Netherlands, and the United States, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Posthoff | Germany, United States, Netherlands |
| anne posthoff (b. 1961) |
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| christian posthoff Dr. rer. nat. habil. Technische Universität Chemnitz 1979 |
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| anna posthoff |
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Anne, Edna, Karen, Luann, Philip, Alexander, Krimhilde, Heinz-Joachim, and Karl-Heinz