| Cetinje to Oberkirch | 674.60 mi (1,085.67 km) |
| Cetinje to Obernburg am Main | 695.33 mi (1,119.02 km) |
| Cetinje to Obernkirchen | 821.41 mi (1,321.94 km) |
| Cetinje to Oberschleissheim | 540.00 mi (869.04 km) |
| Cetinje to Oberstdorf | 546.82 mi (880.03 km) |
| Cetinje to Obertraubling | 559.29 mi (900.09 km) |
| Cetinje to Obertshausen | 716.06 mi (1,152.39 km) |
| Cetinje to Oberursel | 730.79 mi (1,176.09 km) |
| Cetinje to Ochsenfurt | 656.94 mi (1,057.24 km) |
| Cetinje to Ochsenhausen | 586.91 mi (944.55 km) |
| Cetinje to Ochtrup | 871.27 mi (1,402.17 km) |
| Cetinje to Odenthal | 816.71 mi (1,314.37 km) |
| Cetinje to Oelde | 824.70 mi (1,327.23 km) |
| Cetinje to Oelsnitz | 641.17 mi (1,031.86 km) |
| Cetinje to Oer-Erkenschwick | 841.59 mi (1,354.42 km) |
