| Ocana to Opole | 1,269.87 mi (2,043.65 km) |
| Ocana to Orzesze | 1,286.54 mi (2,070.49 km) |
| Ocana to Osowa | 1,425.09 mi (2,293.47 km) |
| Ocana to Ostroda | 1,448.00 mi (2,330.32 km) |
| Ocana to Ostroleka | 1,483.89 mi (2,388.09 km) |
| Ocana to Ostrow Mazowiecka | 1,487.90 mi (2,394.55 km) |
| Ocana to Ostrow Wielkopolski | 1,298.07 mi (2,089.03 km) |
| Ocana to Ostrowiec Swietokrzyski | 1,414.83 mi (2,276.95 km) |
| Ocana to Ostrzeszow | 1,294.46 mi (2,083.23 km) |
| Ocana to Oswiecim | 1,302.45 mi (2,096.09 km) |
| Ocana to Otwock | 1,443.19 mi (2,322.59 km) |
| Ocana to Ozarow Mazowiecki | 1,428.51 mi (2,298.96 km) |
| Ocana to Ozimek | 1,280.97 mi (2,061.52 km) |
| Ocana to Ozorkow | 1,363.44 mi (2,194.25 km) |
| Ocana to Pabianice | 1,356.94 mi (2,183.79 km) |
