| Wath upon Dearne to Orbetello | 956.95 mi (1,540.07 km) |
| Wath upon Dearne to Oria | 1,259.82 mi (2,027.49 km) |
| Wath upon Dearne to Oristano | 1,048.38 mi (1,687.21 km) |
| Wath upon Dearne to Orta Nova | 1,152.96 mi (1,855.51 km) |
| Wath upon Dearne to Orte | 989.00 mi (1,591.65 km) |
| Wath upon Dearne to Ortona | 1,055.99 mi (1,699.45 km) |
| Wath upon Dearne to Orvieto | 966.36 mi (1,555.20 km) |
| Wath upon Dearne to Orzinuovi | 753.09 mi (1,211.98 km) |
| Wath upon Dearne to Osimo | 965.81 mi (1,554.32 km) |
| Wath upon Dearne to Ospitaletto | 748.88 mi (1,205.21 km) |
| Wath upon Dearne to Ostuni | 1,245.56 mi (2,004.53 km) |
| Wath upon Dearne to Ottaviano | 1,141.97 mi (1,837.82 km) |
| Wath upon Dearne to Ovada | 759.61 mi (1,222.48 km) |
| Wath upon Dearne to Ozieri | 1,014.34 mi (1,632.42 km) |
| Wath upon Dearne to Paceco | 1,259.26 mi (2,026.58 km) |
