| Holbaek to Oignies | 511.70 mi (823.50 km) |
| Holbaek to Oissel | 626.10 mi (1,007.62 km) |
| Holbaek to Olivet | 684.57 mi (1,101.70 km) |
| Holbaek to Ollioules | 907.36 mi (1,460.25 km) |
| Holbaek to Olonne-sur-Mer | 860.03 mi (1,384.09 km) |
| Holbaek to Oloron-Sainte-Marie | 1,023.81 mi (1,647.67 km) |
| Holbaek to Onet Village | 880.93 mi (1,417.73 km) |
| Holbaek to Onnaing | 498.72 mi (802.61 km) |
| Holbaek to Orange | 855.95 mi (1,377.52 km) |
| Holbaek to Orchies | 504.15 mi (811.36 km) |
| Holbaek to Orleans | 682.14 mi (1,097.79 km) |
| Holbaek to Orly | 621.73 mi (1,000.58 km) |
| Holbaek to Ormesson-sur-Marne | 615.52 mi (990.59 km) |
| Holbaek to Orsay | 629.78 mi (1,013.54 km) |
| Holbaek to Orthez | 1,009.89 mi (1,625.26 km) |
