| Trowbridge to Octeville | 119.59 mi (192.46 km) |
| Trowbridge to Oignies | 234.13 mi (376.80 km) |
| Trowbridge to Oissel | 199.60 mi (321.23 km) |
| Trowbridge to Olivet | 301.37 mi (485.01 km) |
| Trowbridge to Ollioules | 679.03 mi (1,092.80 km) |
| Trowbridge to Olonne-sur-Mer | 331.12 mi (532.89 km) |
| Trowbridge to Oloron-Sainte-Marie | 566.40 mi (911.53 km) |
| Trowbridge to Onet Village | 529.30 mi (851.83 km) |
| Trowbridge to Onnaing | 261.24 mi (420.42 km) |
| Trowbridge to Orange | 593.19 mi (954.65 km) |
| Trowbridge to Orchies | 244.60 mi (393.65 km) |
| Trowbridge to Orleans | 299.45 mi (481.92 km) |
| Trowbridge to Orly | 270.79 mi (435.79 km) |
| Trowbridge to Ormesson-sur-Marne | 273.76 mi (440.57 km) |
| Trowbridge to Orsay | 266.21 mi (428.42 km) |
