| Novi Knezevac to Orbetello | 505.28 mi (813.17 km) |
| Novi Knezevac to Oria | 402.99 mi (648.55 km) |
| Novi Knezevac to Oristano | 718.99 mi (1,157.11 km) |
| Novi Knezevac to Orta Nova | 392.78 mi (632.12 km) |
| Novi Knezevac to Orte | 454.92 mi (732.12 km) |
| Novi Knezevac to Ortona | 380.70 mi (612.68 km) |
| Novi Knezevac to Orvieto | 456.45 mi (734.58 km) |
| Novi Knezevac to Orzinuovi | 492.10 mi (791.95 km) |
| Novi Knezevac to Osimo | 369.70 mi (594.97 km) |
| Novi Knezevac to Ospitaletto | 483.84 mi (778.67 km) |
| Novi Knezevac to Ostuni | 388.42 mi (625.10 km) |
| Novi Knezevac to Ottaviano | 456.50 mi (734.67 km) |
| Novi Knezevac to Ovada | 564.16 mi (907.93 km) |
| Novi Knezevac to Ozieri | 672.63 mi (1,082.49 km) |
| Novi Knezevac to Paceco | 678.16 mi (1,091.39 km) |
