Last name Regenauer (Regenauer 
) , in the world, is a rare surname. The cognomen Regenauer is characteristic of Bermuda, where it is quite a rare surname, Germany, where it is a rare surname, and New Zealand, where it is a very rare surname. Measured by absolute frequency, it is commonest in Germany, the United States, and Brazil.
| VARIANT | COUNTRY |
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| Regenauer | Germany, United States, Bermuda, Brazil, New Zealand |
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franz anton regenauer German politician (1797-1864), DE (b. 1797) |
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| eugen von regenauer Baden fiscal lawyer; President of the Grand Ducal Civil List (1824-1897), DE (b. 1824) |
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| oskar regenauer DE (b. 1849) |
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bernd regenauer German author, DE (b. 1956) |
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| kristen s regenauer researcher (ORCID 0000-0001-6463-967X) |
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Mr, Susan, Scott, April, Carol, Caryn, Bernd, Beate, Boris, Bryan, Kathy, Klaus, Derek, Daryl, David, Donna, Laura, Linda, Lorry, James, Joann, Joyce, Shawn, Fred, Hans, Emma, Ms, Don, Tim, Uwe, Mary, Mark, Mina, Susa, Sven, Anja, Jesse, Carl, Kara, Karl, Kurt, Rose, Ruth, Dale, John, Joan, Eric, Erin, Bill, and Julia