| Oudenburg to Oestrich-Winkel | 234.00 mi (376.59 km) |
| Oudenburg to Offenburg | 289.00 mi (465.10 km) |
| Oudenburg to Oftersheim | 276.48 mi (444.95 km) |
| Oudenburg to Ohrdruf | 336.93 mi (542.24 km) |
| Oudenburg to Ohringen | 318.36 mi (512.35 km) |
| Oudenburg to Olbernhau | 451.07 mi (725.93 km) |
| Oudenburg to Olching | 424.70 mi (683.48 km) |
| Oudenburg to Oldenburg | 259.10 mi (416.98 km) |
| Oudenburg to Oldenburg in Holstein | 393.49 mi (633.27 km) |
| Oudenburg to Olfen | 192.27 mi (309.43 km) |
| Oudenburg to Olpe | 209.99 mi (337.94 km) |
| Oudenburg to Olsberg | 237.28 mi (381.86 km) |
| Oudenburg to Oranienburg | 448.65 mi (722.03 km) |
| Oudenburg to Ortenberg | 270.62 mi (435.53 km) |
| Oudenburg to Oschatz | 436.91 mi (703.15 km) |
