| Mannheim to Octeville | 452.85 mi (728.80 km) |
| Mannheim to Oignies | 252.37 mi (406.14 km) |
| Mannheim to Oissel | 331.52 mi (533.53 km) |
| Mannheim to Olivet | 319.73 mi (514.56 km) |
| Mannheim to Ollioules | 456.02 mi (733.89 km) |
| Mannheim to Olonne-sur-Mer | 514.79 mi (828.47 km) |
| Mannheim to Oloron-Sainte-Marie | 612.67 mi (986.00 km) |
| Mannheim to Onet Village | 449.19 mi (722.91 km) |
| Mannheim to Onnaing | 225.19 mi (362.40 km) |
| Mannheim to Orange | 407.93 mi (656.50 km) |
| Mannheim to Orchies | 241.76 mi (389.08 km) |
| Mannheim to Orleans | 318.34 mi (512.32 km) |
| Mannheim to Orly | 279.34 mi (449.56 km) |
| Mannheim to Ormesson-sur-Marne | 272.24 mi (438.13 km) |
| Mannheim to Orsay | 289.17 mi (465.38 km) |
