| Guilherand to Oestrich-Winkel | 379.13 mi (610.16 km) |
| Guilherand to Offenburg | 283.79 mi (456.72 km) |
| Guilherand to Oftersheim | 352.51 mi (567.31 km) |
| Guilherand to Ohrdruf | 489.05 mi (787.06 km) |
| Guilherand to Ohringen | 366.24 mi (589.41 km) |
| Guilherand to Olbernhau | 556.98 mi (896.37 km) |
| Guilherand to Olching | 379.98 mi (611.52 km) |
| Guilherand to Oldenburg | 586.87 mi (944.48 km) |
| Guilherand to Oldenburg in Holstein | 700.16 mi (1,126.79 km) |
| Guilherand to Olfen | 482.50 mi (776.50 km) |
| Guilherand to Olpe | 441.87 mi (711.12 km) |
| Guilherand to Olsberg | 473.32 mi (761.73 km) |
| Guilherand to Oranienburg | 659.74 mi (1,061.75 km) |
| Guilherand to Ortenberg | 421.95 mi (679.07 km) |
| Guilherand to Oschatz | 580.37 mi (934.01 km) |
