| Tuam to Octeville | 409.50 mi (659.03 km) |
| Tuam to Oignies | 545.27 mi (877.53 km) |
| Tuam to Oissel | 515.60 mi (829.77 km) |
| Tuam to Olivet | 610.38 mi (982.31 km) |
| Tuam to Ollioules | 981.05 mi (1,578.84 km) |
| Tuam to Olonne-sur-Mer | 574.90 mi (925.21 km) |
| Tuam to Oloron-Sainte-Marie | 806.10 mi (1,297.29 km) |
| Tuam to Onet Village | 816.12 mi (1,313.42 km) |
| Tuam to Onnaing | 571.52 mi (919.77 km) |
| Tuam to Orange | 894.74 mi (1,439.95 km) |
| Tuam to Orchies | 554.91 mi (893.04 km) |
| Tuam to Orleans | 608.82 mi (979.80 km) |
| Tuam to Orly | 587.47 mi (945.45 km) |
| Tuam to Ormesson-sur-Marne | 590.90 mi (950.97 km) |
| Tuam to Orsay | 582.15 mi (936.88 km) |
