| Nenagh to Oberkirch | 770.67 mi (1,240.27 km) |
| Nenagh to Obernburg am Main | 774.74 mi (1,246.82 km) |
| Nenagh to Obernkirchen | 726.72 mi (1,169.54 km) |
| Nenagh to Oberschleissheim | 920.74 mi (1,481.78 km) |
| Nenagh to Oberstdorf | 897.54 mi (1,444.45 km) |
| Nenagh to Obertraubling | 923.55 mi (1,486.32 km) |
| Nenagh to Obertshausen | 756.20 mi (1,216.98 km) |
| Nenagh to Oberursel | 742.21 mi (1,194.47 km) |
| Nenagh to Ochsenfurt | 817.93 mi (1,316.33 km) |
| Nenagh to Ochsenhausen | 861.03 mi (1,385.70 km) |
| Nenagh to Ochtrup | 647.16 mi (1,041.50 km) |
| Nenagh to Odenthal | 663.07 mi (1,067.11 km) |
| Nenagh to Oelde | 692.19 mi (1,113.98 km) |
| Nenagh to Oelsnitz | 886.34 mi (1,426.42 km) |
| Nenagh to Oer-Erkenschwick | 657.63 mi (1,058.35 km) |
