| Hackney to Orbetello | 820.35 mi (1,320.22 km) |
| Hackney to Oria | 1,134.70 mi (1,826.13 km) |
| Hackney to Oristano | 903.60 mi (1,454.20 km) |
| Hackney to Orta Nova | 1,025.19 mi (1,649.88 km) |
| Hackney to Orte | 855.50 mi (1,376.80 km) |
| Hackney to Ortona | 927.72 mi (1,493.02 km) |
| Hackney to Orvieto | 832.82 mi (1,340.29 km) |
| Hackney to Orzinuovi | 622.07 mi (1,001.12 km) |
| Hackney to Osimo | 838.74 mi (1,349.82 km) |
| Hackney to Ospitaletto | 619.05 mi (996.26 km) |
| Hackney to Ostuni | 1,120.99 mi (1,804.05 km) |
| Hackney to Ottaviano | 1,009.74 mi (1,625.02 km) |
| Hackney to Ovada | 621.74 mi (1,000.60 km) |
| Hackney to Ozieri | 870.55 mi (1,401.02 km) |
| Hackney to Paceco | 1,118.22 mi (1,799.61 km) |
