| Herceg Novi to Noventa Vicentina | 399.48 mi (642.90 km) |
| Herceg Novi to Novi di Modena | 416.71 mi (670.63 km) |
| Herceg Novi to Novi Ligure | 512.57 mi (824.90 km) |
| Herceg Novi to Nuoro | 498.84 mi (802.80 km) |
| Herceg Novi to Occhiobello | 386.69 mi (622.32 km) |
| Herceg Novi to Oderzo | 377.42 mi (607.40 km) |
| Herceg Novi to Oggiono | 509.81 mi (820.46 km) |
| Herceg Novi to Olbia | 477.69 mi (768.77 km) |
| Herceg Novi to Oleggio | 537.17 mi (864.48 km) |
| Herceg Novi to Olgiate Comasco | 526.81 mi (847.82 km) |
| Herceg Novi to Olgiate Olona | 526.69 mi (847.62 km) |
| Herceg Novi to Omegna | 554.25 mi (891.97 km) |
| Herceg Novi to Opera | 505.47 mi (813.47 km) |
| Herceg Novi to Oppeano | 415.25 mi (668.28 km) |
| Herceg Novi to Orbassano | 576.04 mi (927.05 km) |
