| Watford to Deville-les-Rouen | 163.77 mi (263.56 km) |
| Watford to Dieppe | 136.10 mi (219.03 km) |
| Watford to Digne-les-Bains | 605.62 mi (974.66 km) |
| Watford to Dijon | 385.61 mi (620.59 km) |
| Watford to Dinan | 232.91 mi (374.83 km) |
| Watford to Dinard | 221.47 mi (356.41 km) |
| Watford to Divonne-les-Bains | 470.61 mi (757.37 km) |
| Watford to Dole | 411.40 mi (662.09 km) |
| Watford to Dombasle-sur-Meurthe | 364.53 mi (586.66 km) |
| Watford to Domerat | 389.10 mi (626.20 km) |
| Watford to Domont | 217.61 mi (350.21 km) |
| Watford to Douai | 175.17 mi (281.90 km) |
| Watford to Douarnenez | 302.05 mi (486.10 km) |
| Watford to Douchy-les-Mines | 189.48 mi (304.94 km) |
| Watford to Dourdan | 240.87 mi (387.64 km) |
