| Mariehamn to Dieppe | 1,019.25 mi (1,640.33 km) |
| Mariehamn to Digne-les-Bains | 1,243.85 mi (2,001.79 km) |
| Mariehamn to Dijon | 1,068.05 mi (1,718.86 km) |
| Mariehamn to Dinan | 1,187.02 mi (1,910.32 km) |
| Mariehamn to Dinard | 1,177.90 mi (1,895.65 km) |
| Mariehamn to Divonne-les-Bains | 1,102.75 mi (1,774.70 km) |
| Mariehamn to Dole | 1,071.13 mi (1,723.82 km) |
| Mariehamn to Dombasle-sur-Meurthe | 959.10 mi (1,543.52 km) |
| Mariehamn to Domerat | 1,183.49 mi (1,904.65 km) |
| Mariehamn to Domont | 1,034.14 mi (1,664.28 km) |
| Mariehamn to Douai | 939.62 mi (1,512.18 km) |
| Mariehamn to Douarnenez | 1,273.43 mi (2,049.39 km) |
| Mariehamn to Douchy-les-Mines | 935.02 mi (1,504.76 km) |
| Mariehamn to Dourdan | 1,070.55 mi (1,722.89 km) |
| Mariehamn to Draguignan | 1,274.92 mi (2,051.79 km) |
