Family name Mainzer (Mainzer 
, Майнцер 
) , across the world, is quite a rare surname. The last name Mainzer is characteristic of Germany, where it is quite a rare surname, Czechia, where it is a rare surname, and Kazakhstan. Measured by absolute frequency, it is the most numerous in Germany, the United States, and Czechia. Much less frequently, Mainzer is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Mainzer | Germany, Brazil, Spain, Czechia, United States |
| Майнцер | Kazakhstan, Ukraine, Russia |
Mainzer Käse, Маинзер, and Майнзер
| joseph mainzer German priest and composer (1801-1851), DE (b. 1801) |
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| johann georg mainzer (b. 1793) |
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| jakob mainzer DE (b. 1804) |
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| regina mainzer holocaust victim, b. 1856-08-23, DE (b. 1856) |
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| johanna mainzer holocaust victim, b. 1863-03-26, DE (b. 1863) |
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| dr. robert mainzer holocaust victim, b. 1864-11-04, DE (b. 1864) |
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| august mainzer holocaust victim, b. 1869-03-11, DE (b. 1869) |
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| felix mainzer holocaust victim, b. 1870-11-11, DE (b. 1870) |
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| ferdinand mainzer German gynaecologist and historian (b. 1871) |
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| simon mainzer holocaust victim, b. 1871-11-20, DE (b. 1871) |
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| max mainzer holocaust victim, b. 1874-09-26, DE (b. 1874) |
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| julius mainzer holocaust victim, b. 1875-06-29, DE (b. 1875) |
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| eugenie mainzer holocaust victim, b. 1876-03-01, DE (b. 1876) |
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| helene mainzer holocaust victim, b. 1876-07-07, DE (b. 1876) |
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| isaak mainzer holocaust victim, b. 1877-09-03, DE (b. 1877) |
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