| Maromme to Oria | 1,017.21 mi (1,637.04 km) |
| Maromme to Oristano | 757.57 mi (1,219.20 km) |
| Maromme to Orta Nova | 904.79 mi (1,456.12 km) |
| Maromme to Orte | 728.06 mi (1,171.69 km) |
| Maromme to Ortona | 807.42 mi (1,299.42 km) |
| Maromme to Orvieto | 705.51 mi (1,135.41 km) |
| Maromme to Orzinuovi | 501.66 mi (807.35 km) |
| Maromme to Osimo | 721.13 mi (1,160.55 km) |
| Maromme to Ospitaletto | 500.69 mi (805.77 km) |
| Maromme to Ostuni | 1,004.33 mi (1,616.31 km) |
| Maromme to Ottaviano | 883.08 mi (1,421.17 km) |
| Maromme to Ovada | 489.52 mi (787.80 km) |
| Maromme to Ozieri | 726.40 mi (1,169.03 km) |
| Maromme to Paceco | 978.06 mi (1,574.03 km) |
| Maromme to Pachino | 1,127.90 mi (1,815.18 km) |
