| Gummersbach to Oegstgeest | 154.92 mi (249.33 km) |
| Gummersbach to Oirschot | 103.16 mi (166.01 km) |
| Gummersbach to Oisterwijk | 109.05 mi (175.50 km) |
| Gummersbach to Oldebroek | 121.10 mi (194.89 km) |
| Gummersbach to Oldenzaal | 92.73 mi (149.24 km) |
| Gummersbach to Ommen | 113.67 mi (182.94 km) |
| Gummersbach to Oosterend | 150.33 mi (241.94 km) |
| Gummersbach to Oosterhout | 124.31 mi (200.06 km) |
| Gummersbach to Oosterwolde | 145.68 mi (234.45 km) |
| Gummersbach to Oostzaan | 150.12 mi (241.60 km) |
| Gummersbach to Opmeer | 160.37 mi (258.09 km) |
| Gummersbach to Oss | 101.86 mi (163.93 km) |
| Gummersbach to Oud-Beijerland | 146.76 mi (236.19 km) |
| Gummersbach to Oudenbosch | 136.90 mi (220.32 km) |
| Gummersbach to Oudewater | 134.48 mi (216.43 km) |
