| Grangemouth to Octeville | 449.53 mi (723.45 km) |
| Grangemouth to Oignies | 472.46 mi (760.36 km) |
| Grangemouth to Oissel | 502.66 mi (808.96 km) |
| Grangemouth to Olivet | 611.24 mi (983.69 km) |
| Grangemouth to Ollioules | 985.10 mi (1,585.37 km) |
| Grangemouth to Olonne-sur-Mer | 660.02 mi (1,062.20 km) |
| Grangemouth to Oloron-Sainte-Marie | 896.27 mi (1,442.41 km) |
| Grangemouth to Onet Village | 850.87 mi (1,369.34 km) |
| Grangemouth to Onnaing | 492.06 mi (791.89 km) |
| Grangemouth to Orange | 901.74 mi (1,451.21 km) |
| Grangemouth to Orchies | 478.27 mi (769.70 km) |
| Grangemouth to Orleans | 608.88 mi (979.90 km) |
| Grangemouth to Orly | 563.93 mi (907.55 km) |
| Grangemouth to Ormesson-sur-Marne | 564.11 mi (907.85 km) |
| Grangemouth to Orsay | 562.95 mi (905.98 km) |
