| Osterburg to Novi di Modena | 546.55 mi (879.58 km) |
| Osterburg to Novi Ligure | 570.66 mi (918.38 km) |
| Osterburg to Nuoro | 868.95 mi (1,398.44 km) |
| Osterburg to Occhiobello | 543.26 mi (874.29 km) |
| Osterburg to Oderzo | 484.92 mi (780.41 km) |
| Osterburg to Oggiono | 495.69 mi (797.74 km) |
| Osterburg to Olbia | 826.76 mi (1,330.54 km) |
| Osterburg to Oleggio | 515.96 mi (830.36 km) |
| Osterburg to Olgiate Comasco | 499.74 mi (804.26 km) |
| Osterburg to Olgiate Olona | 510.76 mi (822.00 km) |
| Osterburg to Omegna | 500.37 mi (805.27 km) |
| Osterburg to Opera | 524.06 mi (843.40 km) |
| Osterburg to Oppeano | 517.72 mi (833.18 km) |
| Osterburg to Orbassano | 570.34 mi (917.87 km) |
| Osterburg to Orbetello | 715.15 mi (1,150.93 km) |
