| Castel Gandolfo to Deville-les-Rouen | 772.46 mi (1,243.15 km) |
| Castel Gandolfo to Dieppe | 791.51 mi (1,273.81 km) |
| Castel Gandolfo to Digne-les-Bains | 362.71 mi (583.73 km) |
| Castel Gandolfo to Dijon | 537.57 mi (865.14 km) |
| Castel Gandolfo to Dinan | 851.59 mi (1,370.50 km) |
| Castel Gandolfo to Dinard | 857.76 mi (1,380.42 km) |
| Castel Gandolfo to Divonne-les-Bains | 453.49 mi (729.82 km) |
| Castel Gandolfo to Dole | 510.79 mi (822.04 km) |
| Castel Gandolfo to Dombasle-sur-Meurthe | 565.27 mi (909.71 km) |
| Castel Gandolfo to Domerat | 594.29 mi (956.41 km) |
| Castel Gandolfo to Domont | 708.77 mi (1,140.66 km) |
| Castel Gandolfo to Douai | 750.84 mi (1,208.36 km) |
| Castel Gandolfo to Douarnenez | 936.58 mi (1,507.28 km) |
| Castel Gandolfo to Douchy-les-Mines | 738.16 mi (1,187.95 km) |
| Castel Gandolfo to Dourdan | 697.78 mi (1,122.97 km) |
