| Grenoble to Oestrich-Winkel | 350.05 mi (563.35 km) |
| Grenoble to Offenburg | 250.50 mi (403.14 km) |
| Grenoble to Oftersheim | 319.60 mi (514.35 km) |
| Grenoble to Ohrdruf | 454.08 mi (730.77 km) |
| Grenoble to Ohringen | 329.96 mi (531.03 km) |
| Grenoble to Olbernhau | 517.51 mi (832.85 km) |
| Grenoble to Olching | 337.63 mi (543.36 km) |
| Grenoble to Oldenburg | 562.13 mi (904.67 km) |
| Grenoble to Oldenburg in Holstein | 671.06 mi (1,079.96 km) |
| Grenoble to Olfen | 458.56 mi (737.98 km) |
| Grenoble to Olpe | 415.40 mi (668.52 km) |
| Grenoble to Olsberg | 445.30 mi (716.64 km) |
| Grenoble to Oranienburg | 624.31 mi (1,004.73 km) |
| Grenoble to Ortenberg | 390.11 mi (627.83 km) |
| Grenoble to Oschatz | 542.41 mi (872.92 km) |
