| Gislaved to Oerlinghausen | 416.49 mi (670.27 km) |
| Gislaved to Oestrich-Winkel | 552.51 mi (889.18 km) |
| Gislaved to Offenburg | 652.92 mi (1,050.77 km) |
| Gislaved to Oftersheim | 584.29 mi (940.33 km) |
| Gislaved to Ohrdruf | 461.26 mi (742.32 km) |
| Gislaved to Ohringen | 583.71 mi (939.38 km) |
| Gislaved to Olbernhau | 458.39 mi (737.70 km) |
| Gislaved to Olching | 635.46 mi (1,022.67 km) |
| Gislaved to Oldenburg | 355.32 mi (571.83 km) |
| Gislaved to Oldenburg in Holstein | 231.38 mi (372.37 km) |
| Gislaved to Olfen | 457.50 mi (736.28 km) |
| Gislaved to Olpe | 491.19 mi (790.49 km) |
| Gislaved to Olsberg | 458.41 mi (737.74 km) |
| Gislaved to Oranienburg | 314.29 mi (505.80 km) |
| Gislaved to Ortenberg | 513.10 mi (825.75 km) |
