O
| Name / Life data | Occupation | Location of the plaque |
|---|---|---|
| Oehlenschläger, Adam Gottlob (1779-1850) | Poet | Fürstengraben 18 |
| Oehme, Christian Gotthilf Immanuel (1759-1832) | University drawing teacher | Löbdergraben 15a |
| Oemler, Johann Christian Wilhelm (1728-1802) | Theologian | (Behind the church 5) |
| Oken (Okenfuß), Lorenz (1779-1851) | Philosopher, naturalist | (Leutrastrasse 5) |
| Ostermann, Heinrich Johann Friedrich (1686-1747) | Politician | (Fürstengraben 6) |
| Oxenstierna, Axel (1583-1654) | Swedish statesman | Under the market 4 |