| Otocac to Oignies | 687.25 mi (1,106.02 km) |
| Otocac to Oissel | 731.94 mi (1,177.94 km) |
| Otocac to Olivet | 667.55 mi (1,074.32 km) |
| Otocac to Ollioules | 481.21 mi (774.43 km) |
| Otocac to Olonne-sur-Mer | 827.04 mi (1,330.99 km) |
| Otocac to Oloron-Sainte-Marie | 794.00 mi (1,277.82 km) |
| Otocac to Onet Village | 621.99 mi (1,000.99 km) |
| Otocac to Onnaing | 661.41 mi (1,064.44 km) |
| Otocac to Orange | 515.76 mi (830.04 km) |
| Otocac to Orchies | 677.88 mi (1,090.95 km) |
| Otocac to Orleans | 667.78 mi (1,074.69 km) |
| Otocac to Orly | 662.64 mi (1,066.42 km) |
| Otocac to Ormesson-sur-Marne | 657.34 mi (1,057.89 km) |
| Otocac to Orsay | 670.49 mi (1,079.05 km) |
| Otocac to Orthez | 797.43 mi (1,283.33 km) |
