| Blagoevgrad to Oestrich-Winkel | 907.68 mi (1,460.77 km) |
| Blagoevgrad to Offenburg | 859.48 mi (1,383.20 km) |
| Blagoevgrad to Oftersheim | 862.82 mi (1,388.57 km) |
| Blagoevgrad to Ohrdruf | 844.87 mi (1,359.69 km) |
| Blagoevgrad to Ohringen | 821.45 mi (1,322.00 km) |
| Blagoevgrad to Olbernhau | 756.40 mi (1,217.30 km) |
| Blagoevgrad to Olching | 714.53 mi (1,149.92 km) |
| Blagoevgrad to Oldenburg | 1,031.45 mi (1,659.96 km) |
| Blagoevgrad to Oldenburg in Holstein | 1,015.36 mi (1,634.07 km) |
| Blagoevgrad to Olfen | 996.25 mi (1,603.30 km) |
| Blagoevgrad to Olpe | 952.36 mi (1,532.67 km) |
| Blagoevgrad to Olsberg | 943.21 mi (1,517.95 km) |
| Blagoevgrad to Oranienburg | 871.93 mi (1,403.23 km) |
| Blagoevgrad to Ortenberg | 882.33 mi (1,419.98 km) |
| Blagoevgrad to Oschatz | 795.95 mi (1,280.95 km) |
