Family name Dreer (Dreer 
) , around the world, is quite a rare surname. The cognomen Dreer is habitual in Western Europe, particularly Austria, where it is quite a rare surname, Germany, where it is a rare surname, and Switzerland. Measured by absolute frequency, it is the most numerous in Germany, Austria, and Brazil.
| VARIANT | COUNTRY |
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| Dreer | Austria, Germany, Argentina, Brazil, United States |
| johannes dreer (b. 1543) |
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| gabriel dreer German painter (1580-1631), DE (b. 1580) |
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| h.a. dreer botanist (1818-1873) (b. 1818) |
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| ferdinand j. dreer (b. 1812) |
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| joseph georg dreer (b. 1812) |
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| herman dreer Black American academic administrator, author (1888–1981), US (b. 1888) |
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esteban javier dreer ginanneschi Ecuadorian association football player, AR (b. 1981) |
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| laura e dreer researcher (ORCID 0000-0002-4728-5467) |
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| henry dreer US |
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| joseph georg dreer |
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Mr, Paul, Ralf, Rita, Dave, Dyna, Gail, Gean, Greg, Lara, Keri, Lisa, Liam, Luiz, Jane, Jose, John, Joao, Jeff, Juan, Jill, Lida, Kent, Kadu, Karl, Ms, Ch, Max, Ana, Bud, Ron, Dee, Don, Jan, Jed, Eva, Mary, Mark, Matt, Mike, Sean, Alex, Anna, Arno, Cmsr, Beth, Nico, and Hugo