| Rouen to Orzesze | 787.37 mi (1,267.14 km) |
| Rouen to Osowa | 813.80 mi (1,309.68 km) |
| Rouen to Ostroda | 859.28 mi (1,382.88 km) |
| Rouen to Ostroleka | 916.67 mi (1,475.24 km) |
| Rouen to Ostrow Mazowiecka | 928.25 mi (1,493.88 km) |
| Rouen to Ostrow Wielkopolski | 748.34 mi (1,204.33 km) |
| Rouen to Ostrowiec Swietokrzyski | 901.52 mi (1,450.86 km) |
| Rouen to Ostrzeszow | 752.08 mi (1,210.36 km) |
| Rouen to Oswiecim | 808.71 mi (1,301.50 km) |
| Rouen to Otwock | 897.57 mi (1,444.50 km) |
| Rouen to Ozarow Mazowiecki | 878.37 mi (1,413.60 km) |
| Rouen to Ozimek | 762.63 mi (1,227.33 km) |
| Rouen to Ozorkow | 812.73 mi (1,307.96 km) |
| Rouen to Pabianice | 815.32 mi (1,312.13 km) |
| Rouen to Parczew | 964.53 mi (1,552.27 km) |
