| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Onatsfeld | city | Baden-Wurttemberg | Germany | 48.87 | 10.07 | 1669 | 63018 |
| Onolzheim | city | Baden-Wurttemberg | Germany | 49.11 | 10.03 | 1669 | 44527 |
| Onsbach | city | Baden-Wurttemberg | Germany | 48.60 | 8.03 | 830 | 30140 |
| Onstmettingen | city | Baden-Wurttemberg | Germany | 48.28 | 9.00 | 2887 | 32848 |