| Mold to Orbetello | 992.58 mi (1,597.41 km) |
| Mold to Oria | 1,306.30 mi (2,102.29 km) |
| Mold to Oristano | 1,069.27 mi (1,720.83 km) |
| Mold to Orta Nova | 1,197.29 mi (1,926.85 km) |
| Mold to Orte | 1,028.05 mi (1,654.49 km) |
| Mold to Ortona | 1,099.87 mi (1,770.07 km) |
| Mold to Orvieto | 1,005.37 mi (1,617.98 km) |
| Mold to Orzinuovi | 794.47 mi (1,278.58 km) |
| Mold to Osimo | 1,010.63 mi (1,626.45 km) |
| Mold to Ospitaletto | 791.30 mi (1,273.47 km) |
| Mold to Ostuni | 1,292.45 mi (2,079.99 km) |
| Mold to Ottaviano | 1,182.29 mi (1,902.71 km) |
| Mold to Ovada | 793.80 mi (1,277.50 km) |
| Mold to Ozieri | 1,038.12 mi (1,670.70 km) |
| Mold to Paceco | 1,288.40 mi (2,073.49 km) |
