| Geraardsbergen to Orzesze | 654.95 mi (1,054.04 km) |
| Geraardsbergen to Osowa | 661.48 mi (1,064.56 km) |
| Geraardsbergen to Ostroda | 709.02 mi (1,141.06 km) |
| Geraardsbergen to Ostroleka | 768.77 mi (1,237.21 km) |
| Geraardsbergen to Ostrow Mazowiecka | 781.34 mi (1,257.44 km) |
| Geraardsbergen to Ostrow Wielkopolski | 605.97 mi (975.21 km) |
| Geraardsbergen to Ostrowiec Swietokrzyski | 763.13 mi (1,228.13 km) |
| Geraardsbergen to Ostrzeszow | 611.14 mi (983.53 km) |
| Geraardsbergen to Oswiecim | 676.86 mi (1,089.30 km) |
| Geraardsbergen to Otwock | 753.29 mi (1,212.30 km) |
| Geraardsbergen to Ozarow Mazowiecki | 733.59 mi (1,180.61 km) |
| Geraardsbergen to Ozimek | 626.61 mi (1,008.44 km) |
| Geraardsbergen to Ozorkow | 668.89 mi (1,076.48 km) |
| Geraardsbergen to Pabianice | 673.14 mi (1,083.32 km) |
| Geraardsbergen to Parczew | 822.43 mi (1,323.57 km) |
