| Oldenburg to Opwijk | 227.87 mi (366.72 km) |
| Oldenburg to Ostend | 260.42 mi (419.10 km) |
| Oldenburg to Oud-Heverlee | 219.65 mi (353.49 km) |
| Oldenburg to Oud-Turnhout | 186.06 mi (299.43 km) |
| Oldenburg to Oudenaarde | 252.20 mi (405.87 km) |
| Oldenburg to Oudenburg | 259.10 mi (416.98 km) |
| Oldenburg to Oupeye | 200.76 mi (323.10 km) |
| Oldenburg to Overijse | 226.12 mi (363.90 km) |
| Oldenburg to Overpelt | 178.23 mi (286.83 km) |
| Oldenburg to Paal | 194.42 mi (312.89 km) |
| Oldenburg to Peer | 181.66 mi (292.35 km) |
| Oldenburg to Pepinster | 205.33 mi (330.45 km) |
| Oldenburg to Peruwelz | 268.31 mi (431.81 km) |
| Oldenburg to Perwez | 226.50 mi (364.51 km) |
| Oldenburg to Philippeville | 256.87 mi (413.40 km) |
