| Passau to Oerlinghausen | 315.83 mi (508.28 km) |
| Passau to Oestrich-Winkel | 265.17 mi (426.74 km) |
| Passau to Offenburg | 253.19 mi (407.48 km) |
| Passau to Oftersheim | 228.02 mi (366.96 km) |
| Passau to Ohrdruf | 197.84 mi (318.39 km) |
| Passau to Ohringen | 185.21 mi (298.07 km) |
| Passau to Olbernhau | 144.68 mi (232.85 km) |
| Passau to Olching | 101.89 mi (163.98 km) |
| Passau to Oldenburg | 389.81 mi (627.33 km) |
| Passau to Oldenburg in Holstein | 410.85 mi (661.21 km) |
| Passau to Olfen | 345.70 mi (556.35 km) |
| Passau to Olpe | 302.46 mi (486.76 km) |
| Passau to Olsberg | 292.80 mi (471.22 km) |
| Passau to Oranienburg | 288.98 mi (465.07 km) |
| Passau to Ortenberg | 233.08 mi (375.11 km) |
