| Oliveira de Azemeis to Orbetello | 1,020.25 mi (1,641.94 km) |
| Oliveira de Azemeis to Oria | 1,363.33 mi (2,194.07 km) |
| Oliveira de Azemeis to Oristano | 899.25 mi (1,447.20 km) |
| Oliveira de Azemeis to Orta Nova | 1,255.94 mi (2,021.24 km) |
| Oliveira de Azemeis to Orte | 1,080.06 mi (1,738.19 km) |
| Oliveira de Azemeis to Ortona | 1,183.00 mi (1,903.85 km) |
| Oliveira de Azemeis to Orvieto | 1,065.86 mi (1,715.34 km) |
| Oliveira de Azemeis to Orzinuovi | 977.77 mi (1,573.57 km) |
| Oliveira de Azemeis to Osimo | 1,135.92 mi (1,828.08 km) |
| Oliveira de Azemeis to Ospitaletto | 986.71 mi (1,587.95 km) |
| Oliveira de Azemeis to Ostuni | 1,358.16 mi (2,185.75 km) |
| Oliveira de Azemeis to Ottaviano | 1,196.22 mi (1,925.13 km) |
| Oliveira de Azemeis to Ovada | 905.64 mi (1,457.49 km) |
| Oliveira de Azemeis to Ozieri | 914.03 mi (1,470.98 km) |
| Oliveira de Azemeis to Paceco | 1,136.71 mi (1,829.36 km) |
