| Highland to Oberkirch | 5,806.65 mi (9,344.90 km) |
| Highland to Obernburg am Main | 5,772.38 mi (9,289.74 km) |
| Highland to Obernkirchen | 5,647.67 mi (9,089.05 km) |
| Highland to Oberschleissheim | 5,927.38 mi (9,539.20 km) |
| Highland to Oberstdorf | 5,932.31 mi (9,547.13 km) |
| Highland to Obertraubling | 5,907.27 mi (9,506.84 km) |
| Highland to Obertshausen | 5,751.57 mi (9,256.26 km) |
| Highland to Oberursel | 5,736.94 mi (9,232.72 km) |
| Highland to Ochsenfurt | 5,809.72 mi (9,349.83 km) |
| Highland to Ochsenhausen | 5,887.79 mi (9,475.48 km) |
| Highland to Ochtrup | 5,595.01 mi (9,004.29 km) |
| Highland to Odenthal | 5,651.33 mi (9,094.93 km) |
| Highland to Oelde | 5,641.74 mi (9,079.50 km) |
| Highland to Oelsnitz | 5,830.48 mi (9,383.26 km) |
| Highland to Oer-Erkenschwick | 5,624.91 mi (9,052.42 km) |
