| Oberhausen to Orzesze | 526.17 mi (846.79 km) |
| Oberhausen to Osowa | 522.73 mi (841.25 km) |
| Oberhausen to Ostroda | 569.37 mi (916.31 km) |
| Oberhausen to Ostroleka | 629.44 mi (1,012.98 km) |
| Oberhausen to Ostrow Mazowiecka | 642.32 mi (1,033.72 km) |
| Oberhausen to Ostrow Wielkopolski | 469.72 mi (755.94 km) |
| Oberhausen to Ostrowiec Swietokrzyski | 629.00 mi (1,012.28 km) |
| Oberhausen to Ostrzeszow | 475.86 mi (765.81 km) |
| Oberhausen to Oswiecim | 548.36 mi (882.49 km) |
| Oberhausen to Otwock | 615.50 mi (990.55 km) |
| Oberhausen to Ozarow Mazowiecki | 595.58 mi (958.49 km) |
| Oberhausen to Ozimek | 495.06 mi (796.72 km) |
| Oberhausen to Ozorkow | 531.51 mi (855.39 km) |
| Oberhausen to Pabianice | 536.77 mi (863.85 km) |
| Oberhausen to Parczew | 685.73 mi (1,103.57 km) |
