| Niksar to Dendermonde | 1,721.15 mi (2,769.93 km) |
| Niksar to Dessel | 1,681.17 mi (2,705.58 km) |
| Niksar to Destelbergen | 1,734.15 mi (2,790.84 km) |
| Niksar to Deurne | 1,708.61 mi (2,749.74 km) |
| Niksar to Diepenbeek | 1,663.30 mi (2,676.82 km) |
| Niksar to Diest | 1,680.03 mi (2,703.75 km) |
| Niksar to Diksmuide | 1,773.71 mi (2,854.51 km) |
| Niksar to Dilbeek | 1,711.94 mi (2,755.10 km) |
| Niksar to Dinant | 1,675.52 mi (2,696.49 km) |
| Niksar to Dison | 1,640.38 mi (2,639.93 km) |
| Niksar to Dour | 1,726.44 mi (2,778.43 km) |
| Niksar to Drongen | 1,739.82 mi (2,799.97 km) |
| Niksar to Duffel | 1,704.44 mi (2,743.03 km) |
| Niksar to Durbuy | 1,653.36 mi (2,660.83 km) |
| Niksar to Ecaussinnes-Lalaing | 1,711.19 mi (2,753.89 km) |
