| Guyancourt to Orzesze | 753.32 mi (1,212.35 km) |
| Guyancourt to Osowa | 802.20 mi (1,291.02 km) |
| Guyancourt to Ostroda | 842.66 mi (1,356.12 km) |
| Guyancourt to Ostroleka | 896.05 mi (1,442.06 km) |
| Guyancourt to Ostrow Mazowiecka | 906.27 mi (1,458.50 km) |
| Guyancourt to Ostrow Wielkopolski | 722.32 mi (1,162.46 km) |
| Guyancourt to Ostrowiec Swietokrzyski | 871.19 mi (1,402.05 km) |
| Guyancourt to Ostrzeszow | 724.74 mi (1,166.36 km) |
| Guyancourt to Oswiecim | 774.17 mi (1,245.90 km) |
| Guyancourt to Otwock | 872.66 mi (1,404.41 km) |
| Guyancourt to Ozarow Mazowiecki | 854.08 mi (1,374.50 km) |
| Guyancourt to Ozimek | 731.25 mi (1,176.83 km) |
| Guyancourt to Ozorkow | 787.77 mi (1,267.79 km) |
| Guyancourt to Pabianice | 788.71 mi (1,269.31 km) |
| Guyancourt to Parczew | 937.16 mi (1,508.22 km) |
