| Tullamore to Octeville | 355.95 mi (572.84 km) |
| Tullamore to Oignies | 487.04 mi (783.82 km) |
| Tullamore to Oissel | 459.13 mi (738.90 km) |
| Tullamore to Olivet | 555.57 mi (894.10 km) |
| Tullamore to Ollioules | 928.31 mi (1,493.97 km) |
| Tullamore to Olonne-sur-Mer | 529.91 mi (852.80 km) |
| Tullamore to Oloron-Sainte-Marie | 764.00 mi (1,229.53 km) |
| Tullamore to Onet Village | 765.98 mi (1,232.72 km) |
| Tullamore to Onnaing | 513.27 mi (826.03 km) |
| Tullamore to Orange | 841.98 mi (1,355.03 km) |
| Tullamore to Orchies | 496.67 mi (799.31 km) |
| Tullamore to Orleans | 553.93 mi (891.47 km) |
| Tullamore to Orly | 530.88 mi (854.37 km) |
| Tullamore to Ormesson-sur-Marne | 534.15 mi (859.64 km) |
| Tullamore to Orsay | 525.77 mi (846.14 km) |
