| Beykoz to Oerlinghausen | 1,218.47 mi (1,960.94 km) |
| Beykoz to Oestrich-Winkel | 1,183.87 mi (1,905.25 km) |
| Beykoz to Offenburg | 1,149.27 mi (1,849.58 km) |
| Beykoz to Oftersheim | 1,143.03 mi (1,839.54 km) |
| Beykoz to Ohrdruf | 1,101.98 mi (1,773.46 km) |
| Beykoz to Ohringen | 1,100.42 mi (1,770.95 km) |
| Beykoz to Olbernhau | 1,000.26 mi (1,609.76 km) |
| Beykoz to Olching | 997.23 mi (1,604.88 km) |
| Beykoz to Oldenburg | 1,276.65 mi (2,054.57 km) |
| Beykoz to Oldenburg in Holstein | 1,235.33 mi (1,988.07 km) |
| Beykoz to Olfen | 1,258.46 mi (2,025.30 km) |
| Beykoz to Olpe | 1,219.59 mi (1,962.74 km) |
| Beykoz to Olsberg | 1,204.83 mi (1,938.98 km) |
| Beykoz to Oranienburg | 1,092.49 mi (1,758.20 km) |
| Beykoz to Ortenberg | 1,151.55 mi (1,853.24 km) |
