Surname Baeyer (باير 
, 拜尔 
, Байер 
) , in all the world, is quite a rare last name. The surname Baeyer is habitual in Kazakhstan, where it is quite a rare surname, Jordan, and Palestinian Territory. In absolute terms, the name is most common in Kazakhstan, Russia, and Jordan. Much less frequently, Baeyer is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| باير | Iran, Iraq, Jordan, Palestinian Territory, Syria |
| 拜尔 | China |
| Байер | Kazakhstan, Ukraine, Russia, Kyrgyzstan |
| Baeyer | Germany, Venezuela, Brazil, United States, United Kingdom |
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johann jacob baeyer German geodesist, DE (b. 1794) |
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johann friedrich wilhelm adolf von baeyer German chemist, DE (b. 1835) |
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| eugenie baeyer (b. 1807) |
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| hans ritter von baeyer German scientist, FR (b. 1875) |
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| otto von baeyer German physicist (1877-1946), DE (b. 1877) |
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| walter ritter von baeyer German psychiatrist, DE (b. 1904) |
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| erich von baeyer DE (b. 1909) |
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| renate von baeyer DE (b. 1911) |
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| wanda maria von baeyer DE (b. 1911) |
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| hans jakob von baeyer DE (b. 1912) |
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| hans christian von baeyer American physicist, US (b. 1938) |
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| alexander von baeyer (b. 1943) |
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| laetitia von baeyer German TV journalist, screenwriter and director |
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| hans jakob ritter von baeyer Dr. rer. nat. Ruprecht-Karls-Universität Heidelberg 1935 |
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| c l von baeyer researcher |
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