| Keskin to Orbetello | 1,179.11 mi (1,897.59 km) |
| Keskin to Oria | 845.51 mi (1,360.72 km) |
| Keskin to Oristano | 1,324.18 mi (2,131.06 km) |
| Keskin to Orta Nova | 945.77 mi (1,522.07 km) |
| Keskin to Orte | 1,119.38 mi (1,801.46 km) |
| Keskin to Ortona | 1,016.36 mi (1,635.68 km) |
| Keskin to Orvieto | 1,134.34 mi (1,825.55 km) |
| Keskin to Orzinuovi | 1,263.42 mi (2,033.28 km) |
| Keskin to Osimo | 1,070.30 mi (1,722.49 km) |
| Keskin to Ospitaletto | 1,258.64 mi (2,025.58 km) |
| Keskin to Ostuni | 847.91 mi (1,364.58 km) |
| Keskin to Ottaviano | 1,010.21 mi (1,625.77 km) |
| Keskin to Ovada | 1,318.27 mi (2,121.55 km) |
| Keskin to Ozieri | 1,297.42 mi (2,087.99 km) |
| Keskin to Paceco | 1,137.12 mi (1,830.02 km) |
