| Nova Gorica to Oberkirch | 315.67 mi (508.02 km) |
| Nova Gorica to Obernburg am Main | 339.74 mi (546.76 km) |
| Nova Gorica to Obernkirchen | 481.44 mi (774.80 km) |
| Nova Gorica to Oberschleissheim | 186.17 mi (299.61 km) |
| Nova Gorica to Oberstdorf | 188.44 mi (303.26 km) |
| Nova Gorica to Obertraubling | 219.10 mi (352.60 km) |
| Nova Gorica to Obertshausen | 360.54 mi (580.24 km) |
| Nova Gorica to Oberursel | 375.08 mi (603.63 km) |
| Nova Gorica to Ochsenfurt | 304.39 mi (489.86 km) |
| Nova Gorica to Ochsenhausen | 227.30 mi (365.80 km) |
| Nova Gorica to Ochtrup | 520.84 mi (838.22 km) |
| Nova Gorica to Odenthal | 460.48 mi (741.07 km) |
| Nova Gorica to Oelde | 476.32 mi (766.57 km) |
| Nova Gorica to Oelsnitz | 315.62 mi (507.94 km) |
| Nova Gorica to Oer-Erkenschwick | 488.48 mi (786.14 km) |
