| Dobrich to Oignies | 1,256.05 mi (2,021.42 km) |
| Dobrich to Oissel | 1,325.94 mi (2,133.89 km) |
| Dobrich to Olivet | 1,279.25 mi (2,058.76 km) |
| Dobrich to Ollioules | 1,101.77 mi (1,773.13 km) |
| Dobrich to Olonne-sur-Mer | 1,450.93 mi (2,335.04 km) |
| Dobrich to Oloron-Sainte-Marie | 1,421.42 mi (2,287.55 km) |
| Dobrich to Onet Village | 1,251.41 mi (2,013.95 km) |
| Dobrich to Onnaing | 1,228.86 mi (1,977.66 km) |
| Dobrich to Orange | 1,144.08 mi (1,841.22 km) |
| Dobrich to Orchies | 1,245.39 mi (2,004.26 km) |
| Dobrich to Orleans | 1,279.04 mi (2,058.42 km) |
| Dobrich to Orly | 1,262.35 mi (2,031.55 km) |
| Dobrich to Ormesson-sur-Marne | 1,256.12 mi (2,021.53 km) |
| Dobrich to Orsay | 1,271.27 mi (2,045.92 km) |
| Dobrich to Orthez | 1,425.81 mi (2,294.62 km) |
