| Croydon to Octeville | 138.16 mi (222.35 km) |
| Croydon to Oignies | 148.88 mi (239.60 km) |
| Croydon to Oissel | 149.97 mi (241.35 km) |
| Croydon to Olivet | 258.57 mi (416.14 km) |
| Croydon to Ollioules | 633.24 mi (1,019.11 km) |
| Croydon to Olonne-sur-Mer | 342.56 mi (551.30 km) |
| Croydon to Oloron-Sainte-Marie | 565.56 mi (910.17 km) |
| Croydon to Onet Village | 500.00 mi (804.68 km) |
| Croydon to Onnaing | 175.36 mi (282.22 km) |
| Croydon to Orange | 549.30 mi (884.01 km) |
| Croydon to Orchies | 158.69 mi (255.39 km) |
| Croydon to Orleans | 256.20 mi (412.31 km) |
| Croydon to Orly | 212.84 mi (342.54 km) |
| Croydon to Ormesson-sur-Marne | 213.82 mi (344.12 km) |
| Croydon to Orsay | 211.03 mi (339.62 km) |
