Cognomen Baer (בר 
, 贝尔 
, Baer 
, along with others...) , around the globe, is a common family name. The surname Baer is habitual in Israel, where it is quite a common surname, Switzerland, and Germany. In absolute terms, it most frequently occurs in the United States, Germany, and Israel. Much less frequently, Baer is the forename as well as the last name.
| VARIANT | COUNTRY |
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| בר | Israel |
| 贝尔, 貝爾 | China |
| Baer | Germany, Philippines, France, United States, Switzerland |
| باير | Iran, Iraq, Jordan, Palestinian Territory, Syria |
| Баер | Kazakhstan, Russia, Ukraine, Kyrgyzstan |
| Баэр | Kazakhstan, Russia, Kyrgyzstan |
| ludwig baer (1479-1554), CH (b. 1479) |
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| jean de la baer glass painter 1603-1668, NL (b. 1603) |
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| vincent adolphus van baer, heer van brandsenburg (1620-1681) (b. 1620) |
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| anna leveke von baer (b. 1612) |
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| anders baer Finnish businessman, FI (b. 1712) |
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| frédéric-charles baer FR (b. 1711) |
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| anna elisabeth baer Finnish merchant, FI (b. 1722) |
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joseph baer DE (b. 1767) |
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karl ernst von baer Baltic German scientist (1792-1876), EE (b. 1792) |
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| carl samuel baer (b. 1733) |
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| anton baer (b. 1750) |
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| adolf fredrik baer (b. 1751) |
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| george baer politician from Frederick (1763-1834), US (b. 1763) |
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| magnus johann von baer politician (1765-1825), EE (b. 1765) |
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| fredrika sofia baer (b. 1756) |
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