| Alcobaca to Orbetello | 1,068.94 mi (1,720.29 km) |
| Alcobaca to Oria | 1,404.12 mi (2,259.72 km) |
| Alcobaca to Oristano | 932.41 mi (1,500.57 km) |
| Alcobaca to Orta Nova | 1,299.65 mi (2,091.59 km) |
| Alcobaca to Orte | 1,128.75 mi (1,816.55 km) |
| Alcobaca to Ortona | 1,231.14 mi (1,981.34 km) |
| Alcobaca to Orvieto | 1,115.87 mi (1,795.81 km) |
| Alcobaca to Orzinuovi | 1,041.76 mi (1,676.55 km) |
| Alcobaca to Osimo | 1,189.35 mi (1,914.07 km) |
| Alcobaca to Ospitaletto | 1,051.28 mi (1,691.87 km) |
| Alcobaca to Ostuni | 1,399.91 mi (2,252.94 km) |
| Alcobaca to Ottaviano | 1,237.32 mi (1,991.27 km) |
| Alcobaca to Ovada | 967.05 mi (1,556.32 km) |
| Alcobaca to Ozieri | 951.76 mi (1,531.71 km) |
| Alcobaca to Paceco | 1,162.00 mi (1,870.05 km) |
