| Massy to Oignies | 124.38 mi (200.17 km) |
| Massy to Oissel | 68.11 mi (109.61 km) |
| Massy to Olivet | 62.28 mi (100.23 km) |
| Massy to Ollioules | 422.70 mi (680.26 km) |
| Massy to Olonne-sur-Mer | 241.71 mi (388.99 km) |
| Massy to Oloron-Sainte-Marie | 406.68 mi (654.48 km) |
| Massy to Onet Village | 302.00 mi (486.02 km) |
| Massy to Onnaing | 129.00 mi (207.60 km) |
| Massy to Orange | 339.51 mi (546.39 km) |
| Massy to Orchies | 128.12 mi (206.18 km) |
| Massy to Orleans | 59.61 mi (95.93 km) |
| Massy to Orly | 5.61 mi (9.03 km) |
| Massy to Ormesson-sur-Marne | 12.74 mi (20.50 km) |
| Massy to Orsay | 4.44 mi (7.15 km) |
| Massy to Orthez | 390.37 mi (628.24 km) |
