| Harborne to Octeville | 196.20 mi (315.76 km) |
| Harborne to Oignies | 253.30 mi (407.64 km) |
| Harborne to Oissel | 252.89 mi (406.98 km) |
| Harborne to Olivet | 360.28 mi (579.82 km) |
| Harborne to Ollioules | 737.71 mi (1,187.23 km) |
| Harborne to Olonne-sur-Mer | 409.38 mi (658.83 km) |
| Harborne to Oloron-Sainte-Marie | 643.20 mi (1,035.13 km) |
| Harborne to Onet Village | 596.52 mi (960.01 km) |
| Harborne to Onnaing | 278.52 mi (448.23 km) |
| Harborne to Orange | 652.88 mi (1,050.71 km) |
| Harborne to Orchies | 262.20 mi (421.97 km) |
| Harborne to Orleans | 358.08 mi (576.27 km) |
| Harborne to Orly | 319.56 mi (514.27 km) |
| Harborne to Ormesson-sur-Marne | 321.04 mi (516.67 km) |
| Harborne to Orsay | 316.92 mi (510.04 km) |
