| Aberbargoed to Octeville | 158.89 mi (255.70 km) |
| Aberbargoed to Oignies | 282.78 mi (455.09 km) |
| Aberbargoed to Oissel | 249.75 mi (401.94 km) |
| Aberbargoed to Olivet | 349.69 mi (562.78 km) |
| Aberbargoed to Ollioules | 726.43 mi (1,169.08 km) |
| Aberbargoed to Olonne-sur-Mer | 362.54 mi (583.45 km) |
| Aberbargoed to Oloron-Sainte-Marie | 599.96 mi (965.55 km) |
| Aberbargoed to Onet Village | 573.00 mi (922.16 km) |
| Aberbargoed to Onnaing | 309.72 mi (498.45 km) |
| Aberbargoed to Orange | 640.36 mi (1,030.56 km) |
| Aberbargoed to Orchies | 293.04 mi (471.60 km) |
| Aberbargoed to Orleans | 347.87 mi (559.84 km) |
| Aberbargoed to Orly | 321.22 mi (516.95 km) |
| Aberbargoed to Ormesson-sur-Marne | 324.32 mi (521.94 km) |
| Aberbargoed to Orsay | 316.42 mi (509.23 km) |
