| Cork to Octeville | 336.90 mi (542.19 km) |
| Cork to Oignies | 505.63 mi (813.74 km) |
| Cork to Oissel | 454.37 mi (731.24 km) |
| Cork to Olivet | 538.56 mi (866.73 km) |
| Cork to Ollioules | 898.45 mi (1,445.92 km) |
| Cork to Olonne-sur-Mer | 477.67 mi (768.74 km) |
| Cork to Oloron-Sainte-Marie | 703.40 mi (1,132.01 km) |
| Cork to Onet Village | 727.24 mi (1,170.37 km) |
| Cork to Onnaing | 532.76 mi (857.40 km) |
| Cork to Orange | 812.67 mi (1,307.86 km) |
| Cork to Orchies | 516.14 mi (830.65 km) |
| Cork to Orleans | 537.36 mi (864.79 km) |
| Cork to Orly | 525.74 mi (846.09 km) |
| Cork to Ormesson-sur-Marne | 530.20 mi (853.27 km) |
| Cork to Orsay | 519.07 mi (835.37 km) |
