| Lanark to Orbetello | 1,133.65 mi (1,824.43 km) |
| Lanark to Oria | 1,429.15 mi (2,299.99 km) |
| Lanark to Oristano | 1,227.33 mi (1,975.19 km) |
| Lanark to Orta Nova | 1,324.30 mi (2,131.25 km) |
| Lanark to Orte | 1,164.08 mi (1,873.41 km) |
| Lanark to Ortona | 1,227.88 mi (1,976.08 km) |
| Lanark to Orvieto | 1,141.50 mi (1,837.06 km) |
| Lanark to Orzinuovi | 927.46 mi (1,492.60 km) |
| Lanark to Osimo | 1,137.22 mi (1,830.18 km) |
| Lanark to Ospitaletto | 922.65 mi (1,484.86 km) |
| Lanark to Ostuni | 1,414.54 mi (2,276.48 km) |
| Lanark to Ottaviano | 1,316.08 mi (2,118.02 km) |
| Lanark to Ovada | 937.11 mi (1,508.13 km) |
| Lanark to Ozieri | 1,193.34 mi (1,920.50 km) |
| Lanark to Paceco | 1,437.62 mi (2,313.63 km) |
