| Trebnje to Octeville | 812.80 mi (1,308.07 km) |
| Trebnje to Oignies | 635.70 mi (1,023.06 km) |
| Trebnje to Oissel | 688.85 mi (1,108.59 km) |
| Trebnje to Olivet | 632.68 mi (1,018.21 km) |
| Trebnje to Ollioules | 489.86 mi (788.35 km) |
| Trebnje to Olonne-sur-Mer | 801.84 mi (1,290.43 km) |
| Trebnje to Oloron-Sainte-Marie | 790.00 mi (1,271.39 km) |
| Trebnje to Onet Village | 613.77 mi (987.77 km) |
| Trebnje to Onnaing | 609.27 mi (980.53 km) |
| Trebnje to Orange | 512.50 mi (824.79 km) |
| Trebnje to Orchies | 625.91 mi (1,007.30 km) |
| Trebnje to Orleans | 632.65 mi (1,018.15 km) |
| Trebnje to Orly | 621.54 mi (1,000.28 km) |
| Trebnje to Ormesson-sur-Marne | 615.81 mi (991.04 km) |
| Trebnje to Orsay | 629.92 mi (1,013.76 km) |
