| Nova Dubnica to Orbetello | 559.17 mi (899.90 km) |
| Nova Dubnica to Oria | 583.21 mi (938.58 km) |
| Nova Dubnica to Oristano | 780.52 mi (1,256.12 km) |
| Nova Dubnica to Orta Nova | 538.41 mi (866.48 km) |
| Nova Dubnica to Orte | 526.16 mi (846.78 km) |
| Nova Dubnica to Ortona | 489.33 mi (787.49 km) |
| Nova Dubnica to Orvieto | 518.06 mi (833.74 km) |
| Nova Dubnica to Orzinuovi | 456.07 mi (733.97 km) |
| Nova Dubnica to Osimo | 437.35 mi (703.84 km) |
| Nova Dubnica to Ospitaletto | 444.36 mi (715.13 km) |
| Nova Dubnica to Ostuni | 567.21 mi (912.84 km) |
| Nova Dubnica to Ottaviano | 586.43 mi (943.77 km) |
| Nova Dubnica to Ovada | 537.82 mi (865.54 km) |
| Nova Dubnica to Ozieri | 729.52 mi (1,174.04 km) |
| Nova Dubnica to Paceco | 806.33 mi (1,297.67 km) |
