| Witzenhausen to Oria | 836.06 mi (1,345.51 km) |
| Witzenhausen to Oristano | 792.51 mi (1,275.42 km) |
| Witzenhausen to Orta Nova | 745.36 mi (1,199.54 km) |
| Witzenhausen to Orte | 625.08 mi (1,005.96 km) |
| Witzenhausen to Ortona | 657.01 mi (1,057.35 km) |
| Witzenhausen to Orvieto | 605.14 mi (973.89 km) |
| Witzenhausen to Orzinuovi | 410.58 mi (660.77 km) |
| Witzenhausen to Osimo | 568.66 mi (915.17 km) |
| Witzenhausen to Ospitaletto | 399.96 mi (643.67 km) |
| Witzenhausen to Ostuni | 820.26 mi (1,320.08 km) |
| Witzenhausen to Ottaviano | 757.59 mi (1,219.22 km) |
| Witzenhausen to Ovada | 466.49 mi (750.74 km) |
| Witzenhausen to Ozieri | 744.38 mi (1,197.96 km) |
| Witzenhausen to Paceco | 932.28 mi (1,500.35 km) |
| Witzenhausen to Pachino | 1,042.85 mi (1,678.31 km) |
