Globally, Oldenburg (Oldenburg 
, Ольденбург 
, Олденбург ) is a very rare predominantly masculine, but very seldom girly first name. The forename Oldenburg is characteristic of Sweden, where it is a rare masculine name, and South Africa, where it is a very rare masculine name. Much more frequently, Oldenburg is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Oldenburg | United States, Sweden, Germany, Netherlands, Brazil |
| Ольденбург | Ukraine, Russia, Kyrgyzstan, Kazakhstan |
| Олденбург | Ukraine, Russia |
Oldemburgo, Oldenberg, Oldenborg, and Данська
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wilbrand von oldenburg Bishop of Paderborn and of Utrecht, DE (b. 1175) |
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| son oldenburg (born 1598) (b. 1598) |
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claes oldenburg American sculptor and printmaker, SE (b. 1929) |
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| duke friedrich august of oldenburg (1900-1900) (b. 1900) |
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| ray oldenburg American sociologist (b. 1932) |
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| duke egilmar of oldenburg German prince (b. 1934) |
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hanna oldenburg Swedish actress, SE (b. 1989) |
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| duke huno of oldenburg German prince (b. 1940) |
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| duke johann of oldenburg German prince (b. 1940) |
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| darby g oldenburg researcher |
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| oda von oldenburg in oldenburg Peerage person ID=8390 |
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| lykke ida kaas oldenburg researcher |
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| reid p oldenburg researcher (b. 1986) |
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