| Ostroda to Oerlinghausen | 486.07 mi (782.25 km) |
| Ostroda to Oestrich-Winkel | 570.17 mi (917.60 km) |
| Ostroda to Offenburg | 633.93 mi (1,020.21 km) |
| Ostroda to Oftersheim | 572.40 mi (921.18 km) |
| Ostroda to Ohrdruf | 437.54 mi (704.16 km) |
| Ostroda to Ohringen | 546.67 mi (879.77 km) |
| Ostroda to Olbernhau | 350.33 mi (563.79 km) |
| Ostroda to Olching | 534.24 mi (859.78 km) |
| Ostroda to Oldenburg | 484.87 mi (780.33 km) |
| Ostroda to Oldenburg in Holstein | 370.95 mi (596.99 km) |
| Ostroda to Olfen | 543.49 mi (874.66 km) |
| Ostroda to Olpe | 543.69 mi (874.99 km) |
| Ostroda to Olsberg | 508.63 mi (818.56 km) |
| Ostroda to Oranienburg | 285.80 mi (459.96 km) |
| Ostroda to Ortenberg | 517.48 mi (832.81 km) |
