| Sremska Mitrovica to Oberkirch | 597.95 mi (962.32 km) |
| Sremska Mitrovica to Obernburg am Main | 593.27 mi (954.78 km) |
| Sremska Mitrovica to Obernkirchen | 694.30 mi (1,117.37 km) |
| Sremska Mitrovica to Oberschleissheim | 443.73 mi (714.12 km) |
| Sremska Mitrovica to Oberstdorf | 476.81 mi (767.36 km) |
| Sremska Mitrovica to Obertraubling | 446.26 mi (718.19 km) |
| Sremska Mitrovica to Obertshausen | 613.05 mi (986.61 km) |
| Sremska Mitrovica to Oberursel | 627.64 mi (1,010.09 km) |
| Sremska Mitrovica to Ochsenfurt | 551.17 mi (887.03 km) |
| Sremska Mitrovica to Ochsenhausen | 506.52 mi (815.17 km) |
| Sremska Mitrovica to Ochtrup | 754.63 mi (1,214.46 km) |
| Sremska Mitrovica to Odenthal | 712.07 mi (1,145.96 km) |
| Sremska Mitrovica to Oelde | 706.56 mi (1,137.11 km) |
| Sremska Mitrovica to Oelsnitz | 510.90 mi (822.22 km) |
| Sremska Mitrovica to Oer-Erkenschwick | 729.95 mi (1,174.75 km) |
