| Matosinhos to Octeville | 675.72 mi (1,087.47 km) |
| Matosinhos to Oignies | 851.56 mi (1,370.45 km) |
| Matosinhos to Oissel | 736.66 mi (1,185.54 km) |
| Matosinhos to Olivet | 695.82 mi (1,119.81 km) |
| Matosinhos to Ollioules | 756.18 mi (1,216.95 km) |
| Matosinhos to Olonne-sur-Mer | 505.46 mi (813.45 km) |
| Matosinhos to Oloron-Sainte-Marie | 436.78 mi (702.94 km) |
| Matosinhos to Onet Village | 612.88 mi (986.34 km) |
| Matosinhos to Onnaing | 867.02 mi (1,395.33 km) |
| Matosinhos to Orange | 715.18 mi (1,150.98 km) |
| Matosinhos to Orchies | 859.74 mi (1,383.62 km) |
| Matosinhos to Orleans | 697.75 mi (1,122.93 km) |
| Matosinhos to Orly | 751.54 mi (1,209.48 km) |
| Matosinhos to Ormesson-sur-Marne | 758.48 mi (1,220.66 km) |
| Matosinhos to Orsay | 742.34 mi (1,194.68 km) |
