Surname Portnoff (Portnoff 
) , around the world, is a rare last name. The family name Portnoff is characteristic of Sweden, where it is a rare surname, France, where it is a very rare surname, and the United States.
| VARIANT | COUNTRY |
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| Portnoff | Australia, Canada, United States, Sweden, France |
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mischa portnoff American composer (b. 1901) |
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| alexander portnoff American artist, 1887 (b. 1887) |
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| daniel portnoff FR (b. 1887) |
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| george portnoff (b. 1892) |
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daniel portnoff Swedish local politician, SE (b. 1971) |
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| andré-yves portnoff (b. 1941) |
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| michael rodney portnoff Sc.D. Massachusetts Institute of Technology 1978 |
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| hans portnoff |
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| sharon portnoff |
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Mr, Leon, Leah, Lisa, Lois, Lucy, Lynn, Jane, Joel, Jeff, June, Tony, Todd, Troy, Nina, Neil, Eric, Emmi, Efim, Maria, Malin, Sarah, Ruth, Paul, Barb, Cora, Meg, Sam, Art, Ame, Amy, Guy, Leo, Lee, Jon, Jim, Shari, Ted, Zoe, Ulf, Marc, Mary, Matt, Saul, Alex, Alan, Anna, Adam, Tim, and Shane