| Ostrov to Obernburg am Main | 171.44 mi (275.91 km) |
| Ostrov to Obernkirchen | 213.53 mi (343.64 km) |
| Ostrov to Oberschleissheim | 154.94 mi (249.35 km) |
| Ostrov to Oberstdorf | 233.77 mi (376.22 km) |
| Ostrov to Obertraubling | 98.84 mi (159.06 km) |
| Ostrov to Obertshausen | 182.37 mi (293.50 km) |
| Ostrov to Oberursel | 192.81 mi (310.31 km) |
| Ostrov to Ochsenfurt | 135.43 mi (217.96 km) |
| Ostrov to Ochsenhausen | 205.06 mi (330.02 km) |
| Ostrov to Ochtrup | 281.00 mi (452.23 km) |
| Ostrov to Odenthal | 259.80 mi (418.11 km) |
| Ostrov to Oelde | 233.11 mi (375.16 km) |
| Ostrov to Oelsnitz | 34.90 mi (56.16 km) |
| Ostrov to Oer-Erkenschwick | 264.05 mi (424.95 km) |
| Ostrov to Oerlinghausen | 217.84 mi (350.57 km) |
