| Diekirch to Oberkirch | 126.76 mi (204.00 km) |
| Diekirch to Obernburg am Main | 132.96 mi (213.99 km) |
| Diekirch to Obernkirchen | 209.70 mi (337.47 km) |
| Diekirch to Oberschleissheim | 269.16 mi (433.18 km) |
| Diekirch to Oberstdorf | 253.46 mi (407.91 km) |
| Diekirch to Obertraubling | 277.17 mi (446.06 km) |
| Diekirch to Obertshausen | 119.74 mi (192.70 km) |
| Diekirch to Oberursel | 109.87 mi (176.82 km) |
| Diekirch to Ochsenfurt | 175.15 mi (281.88 km) |
| Diekirch to Ochsenhausen | 212.02 mi (341.21 km) |
| Diekirch to Ochtrup | 167.63 mi (269.77 km) |
| Diekirch to Odenthal | 90.91 mi (146.31 km) |
| Diekirch to Oelde | 161.22 mi (259.46 km) |
| Diekirch to Oelsnitz | 268.74 mi (432.49 km) |
| Diekirch to Oer-Erkenschwick | 131.57 mi (211.75 km) |
