| Narni to Oberkirch | 467.63 mi (752.58 km) |
| Narni to Obernburg am Main | 530.99 mi (854.54 km) |
| Narni to Obernkirchen | 691.94 mi (1,113.57 km) |
| Narni to Oberschleissheim | 398.80 mi (641.80 km) |
| Narni to Oberstdorf | 355.29 mi (571.78 km) |
| Narni to Obertraubling | 445.91 mi (717.62 km) |
| Narni to Obertshausen | 550.32 mi (885.65 km) |
| Narni to Oberursel | 563.13 mi (906.27 km) |
| Narni to Ochsenfurt | 506.58 mi (815.26 km) |
| Narni to Ochsenhausen | 403.58 mi (649.50 km) |
| Narni to Ochtrup | 713.86 mi (1,148.84 km) |
| Narni to Odenthal | 641.09 mi (1,031.74 km) |
| Narni to Oelde | 675.28 mi (1,086.76 km) |
| Narni to Oelsnitz | 546.09 mi (878.85 km) |
| Narni to Oer-Erkenschwick | 677.00 mi (1,089.53 km) |
