| Mery-sur-Oise to Oignies | 103.58 mi (166.70 km) |
| Mery-sur-Oise to Oissel | 53.04 mi (85.36 km) |
| Mery-sur-Oise to Olivet | 83.92 mi (135.05 km) |
| Mery-sur-Oise to Ollioules | 445.17 mi (716.43 km) |
| Mery-sur-Oise to Olonne-sur-Mer | 253.43 mi (407.86 km) |
| Mery-sur-Oise to Oloron-Sainte-Marie | 426.94 mi (687.10 km) |
| Mery-sur-Oise to Onet Village | 325.17 mi (523.31 km) |
| Mery-sur-Oise to Onnaing | 111.11 mi (178.82 km) |
| Mery-sur-Oise to Orange | 362.32 mi (583.09 km) |
| Mery-sur-Oise to Orchies | 108.32 mi (174.33 km) |
| Mery-sur-Oise to Orleans | 81.22 mi (130.72 km) |
| Mery-sur-Oise to Orly | 24.00 mi (38.62 km) |
| Mery-sur-Oise to Ormesson-sur-Marne | 24.97 mi (40.19 km) |
| Mery-sur-Oise to Orsay | 25.25 mi (40.64 km) |
| Mery-sur-Oise to Orthez | 410.22 mi (660.18 km) |
