| Novo Mesto to Octeville | 822.89 mi (1,324.32 km) |
| Novo Mesto to Oignies | 646.28 mi (1,040.09 km) |
| Novo Mesto to Oissel | 698.99 mi (1,124.91 km) |
| Novo Mesto to Olivet | 642.22 mi (1,033.55 km) |
| Novo Mesto to Ollioules | 494.55 mi (795.90 km) |
| Novo Mesto to Olonne-sur-Mer | 810.59 mi (1,304.52 km) |
| Novo Mesto to Oloron-Sainte-Marie | 796.51 mi (1,281.86 km) |
| Novo Mesto to Onet Village | 620.67 mi (998.87 km) |
| Novo Mesto to Onnaing | 619.87 mi (997.59 km) |
| Novo Mesto to Orange | 518.73 mi (834.81 km) |
| Novo Mesto to Orchies | 636.50 mi (1,024.35 km) |
| Novo Mesto to Orleans | 642.21 mi (1,033.53 km) |
| Novo Mesto to Orly | 631.54 mi (1,016.36 km) |
| Novo Mesto to Ormesson-sur-Marne | 625.83 mi (1,007.17 km) |
| Novo Mesto to Orsay | 639.88 mi (1,029.79 km) |
