| Kotor to Oberkirch | 666.64 mi (1,072.86 km) |
| Kotor to Obernburg am Main | 687.85 mi (1,106.98 km) |
| Kotor to Obernkirchen | 814.57 mi (1,310.93 km) |
| Kotor to Oberschleissheim | 532.52 mi (857.00 km) |
| Kotor to Oberstdorf | 538.85 mi (867.19 km) |
| Kotor to Obertraubling | 552.22 mi (888.71 km) |
| Kotor to Obertshausen | 708.59 mi (1,140.37 km) |
| Kotor to Oberursel | 723.31 mi (1,164.06 km) |
| Kotor to Ochsenfurt | 649.58 mi (1,045.39 km) |
| Kotor to Ochsenhausen | 579.07 mi (931.93 km) |
| Kotor to Ochtrup | 864.07 mi (1,390.59 km) |
| Kotor to Odenthal | 809.22 mi (1,302.32 km) |
| Kotor to Oelde | 817.57 mi (1,315.75 km) |
| Kotor to Oelsnitz | 634.57 mi (1,021.24 km) |
| Kotor to Oer-Erkenschwick | 834.27 mi (1,342.63 km) |
