| Rennes to Orzesze | 931.21 mi (1,498.64 km) |
| Rennes to Osowa | 969.45 mi (1,560.18 km) |
| Rennes to Ostroda | 1,013.93 mi (1,631.77 km) |
| Rennes to Ostroleka | 1,069.93 mi (1,721.88 km) |
| Rennes to Ostrow Mazowiecka | 1,080.89 mi (1,739.53 km) |
| Rennes to Ostrow Wielkopolski | 898.62 mi (1,446.19 km) |
| Rennes to Ostrowiec Swietokrzyski | 1,048.76 mi (1,687.81 km) |
| Rennes to Ostrzeszow | 901.50 mi (1,450.82 km) |
| Rennes to Oswiecim | 952.05 mi (1,532.18 km) |
| Rennes to Otwock | 1,048.63 mi (1,687.61 km) |
| Rennes to Ozarow Mazowiecki | 1,029.77 mi (1,657.26 km) |
| Rennes to Ozimek | 908.94 mi (1,462.79 km) |
| Rennes to Ozorkow | 963.71 mi (1,550.94 km) |
| Rennes to Pabianice | 965.27 mi (1,553.45 km) |
| Rennes to Parczew | 1,114.04 mi (1,792.87 km) |
