| Ocana to Oberkirch | 822.65 mi (1,323.92 km) |
| Ocana to Obernburg am Main | 918.88 mi (1,478.79 km) |
| Ocana to Obernkirchen | 1,040.05 mi (1,673.80 km) |
| Ocana to Oberschleissheim | 938.93 mi (1,511.07 km) |
| Ocana to Oberstdorf | 857.54 mi (1,380.07 km) |
| Ocana to Obertraubling | 988.68 mi (1,591.12 km) |
| Ocana to Obertshausen | 919.89 mi (1,480.41 km) |
| Ocana to Oberursel | 918.59 mi (1,478.33 km) |
| Ocana to Ochsenfurt | 940.99 mi (1,514.37 km) |
| Ocana to Ochsenhausen | 869.99 mi (1,400.11 km) |
| Ocana to Ochtrup | 986.87 mi (1,588.22 km) |
| Ocana to Odenthal | 919.86 mi (1,480.38 km) |
| Ocana to Oelde | 990.83 mi (1,594.58 km) |
| Ocana to Oelsnitz | 1,046.77 mi (1,684.62 km) |
| Ocana to Oer-Erkenschwick | 956.86 mi (1,539.92 km) |
