| Harrow to Deville-les-Rouen | 158.40 mi (254.92 km) |
| Harrow to Dieppe | 130.76 mi (210.44 km) |
| Harrow to Digne-les-Bains | 600.33 mi (966.14 km) |
| Harrow to Dijon | 380.51 mi (612.37 km) |
| Harrow to Dinan | 228.96 mi (368.48 km) |
| Harrow to Dinard | 217.59 mi (350.18 km) |
| Harrow to Divonne-les-Bains | 465.51 mi (749.17 km) |
| Harrow to Dole | 406.33 mi (653.93 km) |
| Harrow to Dombasle-sur-Meurthe | 360.11 mi (579.55 km) |
| Harrow to Domerat | 383.74 mi (617.57 km) |
| Harrow to Domont | 212.35 mi (341.74 km) |
| Harrow to Douai | 170.95 mi (275.12 km) |
| Harrow to Douarnenez | 299.42 mi (481.87 km) |
| Harrow to Douchy-les-Mines | 185.32 mi (298.25 km) |
| Harrow to Dourdan | 235.51 mi (379.02 km) |
