| Niksic to Oberkirch | 657.40 mi (1,057.98 km) |
| Niksic to Obernburg am Main | 675.12 mi (1,086.49 km) |
| Niksic to Obernkirchen | 798.61 mi (1,285.25 km) |
| Niksic to Oberschleissheim | 519.86 mi (836.63 km) |
| Niksic to Oberstdorf | 529.84 mi (852.69 km) |
| Niksic to Obertraubling | 537.39 mi (864.84 km) |
| Niksic to Obertshausen | 695.80 mi (1,119.78 km) |
| Niksic to Oberursel | 710.55 mi (1,143.51 km) |
| Niksic to Ochsenfurt | 636.18 mi (1,023.84 km) |
| Niksic to Ochsenhausen | 568.87 mi (915.51 km) |
| Niksic to Ochtrup | 849.73 mi (1,367.52 km) |
| Niksic to Odenthal | 796.49 mi (1,281.82 km) |
| Niksic to Oelde | 802.92 mi (1,292.17 km) |
| Niksic to Oelsnitz | 617.69 mi (994.08 km) |
| Niksic to Oer-Erkenschwick | 820.59 mi (1,320.62 km) |
