| Opava to Orzesze | 40.28 mi (64.82 km) |
| Opava to Osowa | 311.09 mi (500.65 km) |
| Opava to Ostroda | 274.41 mi (441.62 km) |
| Opava to Ostroleka | 267.39 mi (430.32 km) |
| Opava to Ostrow Mazowiecka | 262.23 mi (422.01 km) |
| Opava to Ostrow Wielkopolski | 118.30 mi (190.39 km) |
| Opava to Ostrowiec Swietokrzyski | 168.48 mi (271.15 km) |
| Opava to Ostrzeszow | 102.17 mi (164.43 km) |
| Opava to Oswiecim | 58.91 mi (94.81 km) |
| Opava to Otwock | 209.74 mi (337.54 km) |
| Opava to Ozarow Mazowiecki | 201.42 mi (324.16 km) |
| Opava to Ozimek | 52.58 mi (84.62 km) |
| Opava to Ozorkow | 152.47 mi (245.37 km) |
| Opava to Pabianice | 134.76 mi (216.88 km) |
| Opava to Parczew | 246.31 mi (396.40 km) |
