| Gif-sur-Yvette to Oignies | 128.04 mi (206.06 km) |
| Gif-sur-Yvette to Oissel | 64.71 mi (104.14 km) |
| Gif-sur-Yvette to Olivet | 58.88 mi (94.76 km) |
| Gif-sur-Yvette to Ollioules | 423.61 mi (681.73 km) |
| Gif-sur-Yvette to Olonne-sur-Mer | 235.52 mi (379.03 km) |
| Gif-sur-Yvette to Oloron-Sainte-Marie | 402.60 mi (647.92 km) |
| Gif-sur-Yvette to Onet Village | 300.40 mi (483.44 km) |
| Gif-sur-Yvette to Onnaing | 133.71 mi (215.18 km) |
| Gif-sur-Yvette to Orange | 340.03 mi (547.23 km) |
| Gif-sur-Yvette to Orchies | 132.20 mi (212.76 km) |
| Gif-sur-Yvette to Orleans | 56.19 mi (90.42 km) |
| Gif-sur-Yvette to Orly | 12.15 mi (19.56 km) |
| Gif-sur-Yvette to Ormesson-sur-Marne | 19.32 mi (31.09 km) |
| Gif-sur-Yvette to Orsay | 2.46 mi (3.96 km) |
| Gif-sur-Yvette to Orthez | 386.11 mi (621.38 km) |
