| Sremska Mitrovica to Opole | 401.21 mi (645.69 km) |
| Sremska Mitrovica to Orzesze | 360.15 mi (579.60 km) |
| Sremska Mitrovica to Osowa | 655.39 mi (1,054.76 km) |
| Sremska Mitrovica to Ostroda | 603.39 mi (971.07 km) |
| Sremska Mitrovica to Ostroleka | 566.33 mi (911.43 km) |
| Sremska Mitrovica to Ostrow Mazowiecka | 550.82 mi (886.45 km) |
| Sremska Mitrovica to Ostrow Wielkopolski | 468.78 mi (754.44 km) |
| Sremska Mitrovica to Ostrowiec Swietokrzyski | 420.21 mi (676.26 km) |
| Sremska Mitrovica to Ostrzeszow | 452.06 mi (727.51 km) |
| Sremska Mitrovica to Oswiecim | 350.65 mi (564.31 km) |
| Sremska Mitrovica to Otwock | 499.52 mi (803.89 km) |
| Sremska Mitrovica to Ozarow Mazowiecki | 503.61 mi (810.48 km) |
| Sremska Mitrovica to Ozimek | 399.34 mi (642.67 km) |
| Sremska Mitrovica to Ozorkow | 483.66 mi (778.37 km) |
| Sremska Mitrovica to Pabianice | 461.66 mi (742.97 km) |
