| Ancona to Orzesze | 514.31 mi (827.71 km) |
| Ancona to Osowa | 779.43 mi (1,254.37 km) |
| Ancona to Ostroda | 755.56 mi (1,215.95 km) |
| Ancona to Ostroleka | 749.24 mi (1,205.79 km) |
| Ancona to Ostrow Mazowiecka | 741.56 mi (1,193.43 km) |
| Ancona to Ostrow Wielkopolski | 589.73 mi (949.08 km) |
| Ancona to Ostrowiec Swietokrzyski | 625.43 mi (1,006.53 km) |
| Ancona to Ostrzeszow | 576.71 mi (928.12 km) |
| Ancona to Oswiecim | 518.84 mi (834.99 km) |
| Ancona to Otwock | 687.55 mi (1,106.51 km) |
| Ancona to Ozarow Mazowiecki | 682.44 mi (1,098.28 km) |
| Ancona to Ozimek | 534.89 mi (860.82 km) |
| Ancona to Ozorkow | 635.50 mi (1,022.74 km) |
| Ancona to Pabianice | 618.12 mi (994.77 km) |
| Ancona to Parczew | 703.35 mi (1,131.94 km) |
