| Marigliano to Octeville | 982.92 mi (1,581.86 km) |
| Marigliano to Oignies | 858.06 mi (1,380.91 km) |
| Marigliano to Oissel | 870.29 mi (1,400.60 km) |
| Marigliano to Olivet | 781.37 mi (1,257.50 km) |
| Marigliano to Ollioules | 466.79 mi (751.23 km) |
| Marigliano to Olonne-sur-Mer | 895.39 mi (1,441.00 km) |
| Marigliano to Oloron-Sainte-Marie | 786.82 mi (1,266.27 km) |
| Marigliano to Onet Village | 646.76 mi (1,040.86 km) |
| Marigliano to Onnaing | 835.66 mi (1,344.87 km) |
| Marigliano to Orange | 538.00 mi (865.83 km) |
| Marigliano to Orchies | 850.70 mi (1,369.06 km) |
| Marigliano to Orleans | 782.51 mi (1,259.33 km) |
| Marigliano to Orly | 798.38 mi (1,284.86 km) |
| Marigliano to Ormesson-sur-Marne | 794.97 mi (1,279.38 km) |
| Marigliano to Orsay | 803.85 mi (1,293.68 km) |
