| Nova Gorica to Oerlinghausen | 472.44 mi (760.32 km) |
| Nova Gorica to Oestrich-Winkel | 382.16 mi (615.03 km) |
| Nova Gorica to Offenburg | 319.12 mi (513.57 km) |
| Nova Gorica to Oftersheim | 333.14 mi (536.14 km) |
| Nova Gorica to Ohrdruf | 362.09 mi (582.72 km) |
| Nova Gorica to Ohringen | 295.78 mi (476.01 km) |
| Nova Gorica to Olbernhau | 325.80 mi (524.33 km) |
| Nova Gorica to Olching | 189.79 mi (305.44 km) |
| Nova Gorica to Oldenburg | 552.69 mi (889.48 km) |
| Nova Gorica to Oldenburg in Holstein | 589.23 mi (948.27 km) |
| Nova Gorica to Olfen | 488.98 mi (786.94 km) |
| Nova Gorica to Olpe | 439.10 mi (706.66 km) |
| Nova Gorica to Olsberg | 440.63 mi (709.13 km) |
| Nova Gorica to Oranienburg | 470.09 mi (756.54 km) |
| Nova Gorica to Ortenberg | 370.17 mi (595.73 km) |
