| Potenza to Oberkirch | 664.18 mi (1,068.90 km) |
| Potenza to Obernburg am Main | 713.18 mi (1,147.76 km) |
| Potenza to Obernkirchen | 863.52 mi (1,389.70 km) |
| Potenza to Oberschleissheim | 565.95 mi (910.81 km) |
| Potenza to Oberstdorf | 542.30 mi (872.75 km) |
| Potenza to Obertraubling | 602.46 mi (969.56 km) |
| Potenza to Obertshausen | 733.57 mi (1,180.57 km) |
| Potenza to Oberursel | 747.45 mi (1,202.90 km) |
| Potenza to Ochsenfurt | 682.28 mi (1,098.03 km) |
| Potenza to Ochsenhausen | 589.30 mi (948.38 km) |
| Potenza to Ochtrup | 897.13 mi (1,443.79 km) |
| Potenza to Odenthal | 830.00 mi (1,335.76 km) |
| Potenza to Oelde | 854.74 mi (1,375.58 km) |
| Potenza to Oelsnitz | 698.25 mi (1,123.72 km) |
| Potenza to Oer-Erkenschwick | 862.41 mi (1,387.91 km) |
