| Giulianova to Oegstgeest | 786.61 mi (1,265.92 km) |
| Giulianova to Oirschot | 727.50 mi (1,170.79 km) |
| Giulianova to Oisterwijk | 734.68 mi (1,182.35 km) |
| Giulianova to Oldebroek | 766.92 mi (1,234.23 km) |
| Giulianova to Oldenzaal | 736.78 mi (1,185.73 km) |
| Giulianova to Ommen | 759.56 mi (1,222.39 km) |
| Giulianova to Oosterend | 795.99 mi (1,281.03 km) |
| Giulianova to Oosterhout | 746.96 mi (1,202.11 km) |
| Giulianova to Oosterwolde | 790.53 mi (1,272.23 km) |
| Giulianova to Oostzaan | 789.91 mi (1,271.24 km) |
| Giulianova to Opmeer | 803.35 mi (1,292.86 km) |
| Giulianova to Oss | 736.82 mi (1,185.80 km) |
| Giulianova to Oud-Beijerland | 768.54 mi (1,236.85 km) |
| Giulianova to Oudenbosch | 753.02 mi (1,211.87 km) |
| Giulianova to Oudewater | 767.15 mi (1,234.61 km) |
