| Merrick to Octeville | 3,422.95 mi (5,508.71 km) |
| Merrick to Oignies | 3,597.17 mi (5,789.09 km) |
| Merrick to Oissel | 3,545.22 mi (5,705.48 km) |
| Merrick to Olivet | 3,616.58 mi (5,820.32 km) |
| Merrick to Ollioules | 3,925.82 mi (6,318.00 km) |
| Merrick to Olonne-sur-Mer | 3,489.58 mi (5,615.94 km) |
| Merrick to Oloron-Sainte-Marie | 3,630.65 mi (5,842.97 km) |
| Merrick to Onet Village | 3,742.78 mi (6,023.43 km) |
| Merrick to Onnaing | 3,624.03 mi (5,832.32 km) |
| Merrick to Orange | 3,848.65 mi (6,193.80 km) |
| Merrick to Orchies | 3,607.34 mi (5,805.46 km) |
| Merrick to Orleans | 3,615.94 mi (5,819.30 km) |
| Merrick to Orly | 3,615.05 mi (5,817.86 km) |
| Merrick to Ormesson-sur-Marne | 3,620.15 mi (5,826.06 km) |
| Merrick to Orsay | 3,607.51 mi (5,805.72 km) |
