| Opatija to Orzesze | 391.64 mi (630.28 km) |
| Opatija to Osowa | 654.90 mi (1,053.96 km) |
| Opatija to Ostroda | 631.01 mi (1,015.51 km) |
| Opatija to Ostroleka | 626.28 mi (1,007.90 km) |
| Opatija to Ostrow Mazowiecka | 619.34 mi (996.73 km) |
| Opatija to Ostrow Wielkopolski | 465.02 mi (748.37 km) |
| Opatija to Ostrowiec Swietokrzyski | 506.38 mi (814.94 km) |
| Opatija to Ostrzeszow | 452.05 mi (727.50 km) |
| Opatija to Oswiecim | 397.39 mi (639.53 km) |
| Opatija to Otwock | 565.55 mi (910.17 km) |
| Opatija to Ozarow Mazowiecki | 559.66 mi (900.69 km) |
| Opatija to Ozimek | 410.76 mi (661.06 km) |
| Opatija to Ozorkow | 511.37 mi (822.98 km) |
| Opatija to Pabianice | 494.34 mi (795.57 km) |
| Opatija to Parczew | 585.23 mi (941.83 km) |
