| Tournai to Oestrich-Winkel | 207.75 mi (334.34 km) |
| Tournai to Offenburg | 251.67 mi (405.03 km) |
| Tournai to Oftersheim | 246.05 mi (395.98 km) |
| Tournai to Ohrdruf | 321.54 mi (517.47 km) |
| Tournai to Ohringen | 288.71 mi (464.63 km) |
| Tournai to Olbernhau | 435.51 mi (700.89 km) |
| Tournai to Olching | 393.06 mi (632.56 km) |
| Tournai to Oldenburg | 270.33 mi (435.05 km) |
| Tournai to Oldenburg in Holstein | 405.54 mi (652.65 km) |
| Tournai to Olfen | 189.34 mi (304.71 km) |
| Tournai to Olpe | 196.11 mi (315.60 km) |
| Tournai to Olsberg | 227.49 mi (366.11 km) |
| Tournai to Oranienburg | 446.86 mi (719.15 km) |
| Tournai to Ortenberg | 249.70 mi (401.86 km) |
| Tournai to Oschatz | 425.43 mi (684.66 km) |
