| Barnet to Octeville | 153.07 mi (246.34 km) |
| Barnet to Oignies | 160.68 mi (258.59 km) |
| Barnet to Oissel | 168.90 mi (271.82 km) |
| Barnet to Olivet | 277.49 mi (446.58 km) |
| Barnet to Ollioules | 651.62 mi (1,048.67 km) |
| Barnet to Olonne-sur-Mer | 360.03 mi (579.41 km) |
| Barnet to Oloron-Sainte-Marie | 584.16 mi (940.11 km) |
| Barnet to Onet Village | 519.13 mi (835.45 km) |
| Barnet to Onnaing | 186.49 mi (300.12 km) |
| Barnet to Orange | 567.85 mi (913.86 km) |
| Barnet to Orchies | 169.97 mi (273.54 km) |
| Barnet to Orleans | 275.10 mi (442.73 km) |
| Barnet to Orly | 230.86 mi (371.53 km) |
| Barnet to Ormesson-sur-Marne | 231.62 mi (372.75 km) |
| Barnet to Orsay | 229.32 mi (369.05 km) |
