Surname Seyffer (Seyffer 
) , in the world, is a rare last name. The last name Seyffer is habitual in Switzerland, where it is a rare surname, Germany, and Australia. In absolute terms, it most frequently occurs in Germany, the United States, and Switzerland. Very seldom, Seyffer is the forename as well as the last name.
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| Seyffer | Germany, Australia, Switzerland, United States, Canada |
| karl felix von seyffer Dr. phil. Eberhard-Karls-Universität Tübingen 1782, DE (b. 1762) |
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| august seyffer German draughtsman (1774-1845), DE (b. 1774) |
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| johann friedrich seyffer (b. 1777) |
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| ernst eberhard friedrich seyffer DE (b. 1781) |
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| otto ernst julius seyffer German physicist, DE (b. 1823) |
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| walter seyffer (b. 1950) |
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| david seyffer Ph.D. Universität Stuttgart 2012 |
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| auguste seyffer |
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| eva seyffer |
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| ann-kathrin seyffer CH |
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Mr, Tony, Timo, Eric, Hans, Will, Maura, Sally, Susan, Allen, Angel, Armin, Aaron, Carol, Craig, Karin, Kelly, Kerry, Kevin, Kitty, Paige, Robin, Jurg, Jean, Joni, John, Ann, Amy, Kim, Jay, Joe, Mark, Alex, Andy, Cole, Brad, Danae, Karl, Kent, Paul, Ross, Rolf, Rick, Gabi, Gerd, Lynn, Jane, Jack, Katy, and Daryl