| Genappe to Orzesze | 629.92 mi (1,013.75 km) |
| Genappe to Osowa | 644.68 mi (1,037.52 km) |
| Genappe to Ostroda | 690.18 mi (1,110.73 km) |
| Genappe to Ostroleka | 748.47 mi (1,204.54 km) |
| Genappe to Ostrow Mazowiecka | 760.55 mi (1,223.98 km) |
| Genappe to Ostrow Wielkopolski | 583.31 mi (938.75 km) |
| Genappe to Ostrowiec Swietokrzyski | 739.45 mi (1,190.02 km) |
| Genappe to Ostrzeszow | 588.04 mi (946.36 km) |
| Genappe to Oswiecim | 651.74 mi (1,048.87 km) |
| Genappe to Otwock | 731.39 mi (1,177.06 km) |
| Genappe to Ozarow Mazowiecki | 711.87 mi (1,145.65 km) |
| Genappe to Ozimek | 602.27 mi (969.26 km) |
| Genappe to Ozorkow | 646.78 mi (1,040.90 km) |
| Genappe to Pabianice | 650.47 mi (1,046.83 km) |
| Genappe to Parczew | 799.82 mi (1,287.18 km) |
