Surname Regenbrecht (Regenbrecht 
) , all around the world, is a rare cognomen. The last name Regenbrecht is habitual in Germany, where it is a rare surname, Czechia, and South Africa, where it is an extremely rare surname. In absolute terms, it most frequently occurs in Germany, the United States, and Czechia. Much less frequently, Regenbrecht is the forename as well as the last name.
| VARIANT | COUNTRY |
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| Regenbrecht | Poland, South Africa, Germany, United States, Czechia |
| johann josef regenbrecht German philosopher and canon (1797-1854), PL (b. 1797) |
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| michael eduard regenbrecht PL (b. 1791) |
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| aloysius regenbrecht German university teacher (1929-2004), DE (b. 1929) |
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| klaus-dieter regenbrecht DE (b. 1950) |
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| christian regenbrecht researcher, DE (b. 1975) |
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| holger regenbrecht researcher (ORCID 0000-0002-5037-6407) |
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| dorothea regenbrecht |
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Mr, Nadja, Heinz, Frank, Sabine, Birgit, Bjarne, Daniel, Dieter, Gisela, Liesel, Thomas, Tobias, Eilika, Harley, Holden, Oliver, Manuela, Meinrad, Michael, Andreas, Amadeus, Jörg, Julia, Laura, Georg, Ms, Joy, Mary, Maik, Mike, Alan, Anne, Kurt, Gene, Jace, Charles, Erik, Hugo, Faye, Claus, Bruno, Klaus, Petra, Peter, Piotr, Renee, Rusty, Hans, and Beverly