| Diekirch to Oerlinghausen | 181.58 mi (292.22 km) |
| Diekirch to Oestrich-Winkel | 82.48 mi (132.74 km) |
| Diekirch to Offenburg | 125.76 mi (202.39 km) |
| Diekirch to Oftersheim | 113.98 mi (183.44 km) |
| Diekirch to Ohrdruf | 212.34 mi (341.73 km) |
| Diekirch to Ohringen | 156.85 mi (252.42 km) |
| Diekirch to Olbernhau | 321.59 mi (517.54 km) |
| Diekirch to Olching | 260.53 mi (419.29 km) |
| Diekirch to Oldenburg | 242.99 mi (391.05 km) |
| Diekirch to Oldenburg in Holstein | 365.93 mi (588.91 km) |
| Diekirch to Olfen | 138.50 mi (222.90 km) |
| Diekirch to Olpe | 108.35 mi (174.37 km) |
| Diekirch to Olsberg | 144.52 mi (232.59 km) |
| Diekirch to Oranienburg | 364.82 mi (587.12 km) |
| Diekirch to Ortenberg | 132.77 mi (213.67 km) |
