| Ostrov to Oestrich-Winkel | 219.64 mi (353.48 km) |
| Ostrov to Offenburg | 258.46 mi (415.95 km) |
| Ostrov to Oftersheim | 204.49 mi (329.09 km) |
| Ostrov to Ohrdruf | 103.33 mi (166.29 km) |
| Ostrov to Ohringen | 171.47 mi (275.95 km) |
| Ostrov to Olbernhau | 30.35 mi (48.85 km) |
| Ostrov to Olching | 162.86 mi (262.10 km) |
| Ostrov to Oldenburg | 281.58 mi (453.15 km) |
| Ostrov to Oldenburg in Holstein | 289.27 mi (465.54 km) |
| Ostrov to Olfen | 260.36 mi (419.01 km) |
| Ostrov to Olpe | 228.91 mi (368.39 km) |
| Ostrov to Olsberg | 207.37 mi (333.74 km) |
| Ostrov to Oranienburg | 169.65 mi (273.03 km) |
| Ostrov to Ortenberg | 171.32 mi (275.71 km) |
| Ostrov to Oschatz | 69.09 mi (111.19 km) |
