| Cities | Distance |
|---|---|
| Herceg Novi to Orbetello | 373.03 mi (600.33 km) |
| Herceg Novi to Oria | 142.72 mi (229.68 km) |
| Herceg Novi to Oristano | 545.63 mi (878.11 km) |
| Herceg Novi to Orta Nova | 164.44 mi (264.65 km) |
| Herceg Novi to Orte | 313.19 mi (504.02 km) |
| Herceg Novi to Ortona | 210.88 mi (339.37 km) |
| Herceg Novi to Orvieto | 327.07 mi (526.37 km) |
| Herceg Novi to Orzinuovi | 473.50 mi (762.03 km) |
| Herceg Novi to Osimo | 264.90 mi (426.32 km) |
| Herceg Novi to Ospitaletto | 471.50 mi (758.81 km) |
| Herceg Novi to Ostuni | 128.52 mi (206.83 km) |
| Herceg Novi to Ottaviano | 236.74 mi (381.00 km) |
| Herceg Novi to Ovada | 517.18 mi (832.32 km) |
| Herceg Novi to Ozieri | 509.21 mi (819.50 km) |
| Herceg Novi to Paceco | 441.31 mi (710.22 km) |