| Guyancourt to Oestrich-Winkel | 279.64 mi (450.04 km) |
| Guyancourt to Offenburg | 268.39 mi (431.93 km) |
| Guyancourt to Oftersheim | 297.51 mi (478.79 km) |
| Guyancourt to Ohrdruf | 411.18 mi (661.72 km) |
| Guyancourt to Ohringen | 337.88 mi (543.76 km) |
| Guyancourt to Olbernhau | 519.17 mi (835.52 km) |
| Guyancourt to Olching | 424.85 mi (683.73 km) |
| Guyancourt to Oldenburg | 403.04 mi (648.64 km) |
| Guyancourt to Oldenburg in Holstein | 537.07 mi (864.34 km) |
| Guyancourt to Olfen | 310.42 mi (499.58 km) |
| Guyancourt to Olpe | 299.51 mi (482.02 km) |
| Guyancourt to Olsberg | 335.33 mi (539.66 km) |
| Guyancourt to Oranienburg | 559.26 mi (900.03 km) |
| Guyancourt to Ortenberg | 331.31 mi (533.19 km) |
| Guyancourt to Oschatz | 519.27 mi (835.69 km) |
