| Friern Barnet to Octeville | 151.85 mi (244.37 km) |
| Friern Barnet to Oignies | 158.07 mi (254.39 km) |
| Friern Barnet to Oissel | 166.23 mi (267.52 km) |
| Friern Barnet to Olivet | 274.82 mi (442.27 km) |
| Friern Barnet to Ollioules | 648.84 mi (1,044.21 km) |
| Friern Barnet to Olonne-sur-Mer | 358.26 mi (576.56 km) |
| Friern Barnet to Oloron-Sainte-Marie | 582.03 mi (936.69 km) |
| Friern Barnet to Onet Village | 516.54 mi (831.29 km) |
| Friern Barnet to Onnaing | 183.93 mi (296.00 km) |
| Friern Barnet to Orange | 565.10 mi (909.44 km) |
| Friern Barnet to Orchies | 167.40 mi (269.40 km) |
| Friern Barnet to Orleans | 272.42 mi (438.41 km) |
| Friern Barnet to Orly | 228.07 mi (367.04 km) |
| Friern Barnet to Ormesson-sur-Marne | 228.81 mi (368.24 km) |
| Friern Barnet to Orsay | 226.54 mi (364.59 km) |
