Surname Karoff (Karoff 
) , all around the world, is a rare cognomen. The family name Karoff is characteristic of Denmark, where it is a rare surname, Germany, and the United States, where it is a very rare surname. Very seldom, Karoff is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Karoff | United States, Denmark, Germany, Russia, Italy |
| martina karoff DE (b. 1956) |
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| jan karoff researcher (ORCID 0000-0002-6271-5269) |
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| peter karoff American nonprofit executive |
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| christoffer karoff researcher |
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| jeffrey karoff filmmaker, US |
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Mi, Melvin, Muriel, Steven, Svenja, Andrea, Angela, Amanda, Adelle, Claire, Lauren, Louise, Thomas, Martina, Marlene, Melanie, Michael, Seymour, Charles, Carolyn, Barbara, Bernard, Maggie, Marisa, Vicki, Helle, Mr, Tom, Myra, Alan, Paul, Dick, John, Fran, Sidni, Susan, Bobette, Scott, Barry, Brian, Peter, Devon, David, Linda, Lukas, Jamie, Jason, Nancy, Annie, and Brandon