| Sremska Mitrovica to Oerlinghausen | 695.13 mi (1,118.70 km) |
| Sremska Mitrovica to Oestrich-Winkel | 642.94 mi (1,034.71 km) |
| Sremska Mitrovica to Offenburg | 602.88 mi (970.24 km) |
| Sremska Mitrovica to Oftersheim | 599.77 mi (965.23 km) |
| Sremska Mitrovica to Ohrdruf | 576.32 mi (927.50 km) |
| Sremska Mitrovica to Ohringen | 557.66 mi (897.47 km) |
| Sremska Mitrovica to Olbernhau | 489.31 mi (787.46 km) |
| Sremska Mitrovica to Olching | 452.40 mi (728.07 km) |
| Sremska Mitrovica to Oldenburg | 763.26 mi (1,228.34 km) |
| Sremska Mitrovica to Oldenburg in Holstein | 752.49 mi (1,211.01 km) |
| Sremska Mitrovica to Olfen | 728.21 mi (1,171.94 km) |
| Sremska Mitrovica to Olpe | 685.07 mi (1,102.51 km) |
| Sremska Mitrovica to Olsberg | 675.03 mi (1,086.36 km) |
| Sremska Mitrovica to Oranienburg | 610.39 mi (982.33 km) |
| Sremska Mitrovica to Ortenberg | 615.32 mi (990.27 km) |
