| Dingle to Orbetello | 997.36 mi (1,605.10 km) |
| Dingle to Oria | 1,308.62 mi (2,106.01 km) |
| Dingle to Oristano | 1,077.09 mi (1,733.41 km) |
| Dingle to Orta Nova | 1,200.11 mi (1,931.40 km) |
| Dingle to Orte | 1,032.08 mi (1,660.97 km) |
| Dingle to Ortona | 1,102.78 mi (1,774.74 km) |
| Dingle to Orvieto | 1,009.39 mi (1,624.46 km) |
| Dingle to Orzinuovi | 797.84 mi (1,283.99 km) |
| Dingle to Osimo | 1,013.27 mi (1,630.70 km) |
| Dingle to Ospitaletto | 794.41 mi (1,278.49 km) |
| Dingle to Ostuni | 1,294.65 mi (2,083.54 km) |
| Dingle to Ottaviano | 1,186.07 mi (1,908.80 km) |
| Dingle to Ovada | 798.79 mi (1,285.53 km) |
| Dingle to Ozieri | 1,045.38 mi (1,682.37 km) |
| Dingle to Paceco | 1,294.67 mi (2,083.57 km) |
