| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Dallo | city | Euskadi | Spain | 42.87 | -2.47 | 1820 | 2540 |
| Deba | city | Euskadi | Spain | 43.30 | -2.35 | 830 | 6972 |
| Delika | city | Euskadi | Spain | 42.97 | -2.99 | 1669 | 6215 |
| Derio | city | Euskadi | Spain | 43.30 | -2.88 | 137 | 87656 |
| Desertu Barakaldo | city | Euskadi | Spain | 43.30 | -2.97 | 111 | 333388 |
| Desierto | city | Euskadi | Spain | 43.30 | -2.97 | 111 | 333388 |
| Deusto | city | Euskadi | Spain | 43.27 | -2.94 | 108 | 408593 |
| Deustu | city | Euskadi | Spain | 43.27 | -2.94 | 108 | 408593 |
| Deustuko Done Petri | city | Euskadi | Spain | 43.27 | -2.94 | 108 | 408593 |
| Deva | city | Euskadi | Spain | 43.30 | -2.35 | 830 | 6972 |
| Dintaldea | city | Euskadi | Spain | 42.98 | -2.30 | 1069 | 4225 |
| Dintias | city | Euskadi | Spain | 42.98 | -2.30 | 1069 | 4225 |
| Dirintialdea | city | Euskadi | Spain | 42.98 | -2.30 | 1069 | 4225 |
| Domaikia | city | Euskadi | Spain | 42.93 | -2.81 | 2509 | 3902 |
| Domaiquia | city | Euskadi | Spain | 42.93 | -2.81 | 2509 | 3902 |
| Done Bikendi | city | Euskadi | Spain | 43.30 | -2.99 | 19 | 372812 |
| Done Bikendi Harana | city | Euskadi | Spain | 42.74 | -2.36 | 3349 | 777 |
| Done Bikendi Harana / San Vicente de Arana | city | Euskadi | Spain | 42.74 | -2.36 | 3349 | 777 |
| Donosti | city | Euskadi | Spain | 43.31 | -1.98 | 16 | 138854 |
| Donostia | city | Euskadi | Spain | 43.31 | -1.98 | 16 | 138854 |
| Donostia / San Sebastián | city | Euskadi | Spain | 43.31 | -1.98 | 16 | 138854 |
| Donostia-San Sebastián | city | Euskadi | Spain | 43.31 | -1.98 | 16 | 138854 |
| Donostio | city | Euskadi | Spain | 43.31 | -1.98 | 16 | 138854 |
| Dudagoitia | city | Euskadi | Spain | 43.22 | -2.70 | 830 | 17902 |
| Dulantzi | city | Euskadi | Spain | 42.84 | -2.51 | 1853 | 6851 |
| Dulantzi / Alegría | city | Euskadi | Spain | 42.84 | -2.51 | 1853 | 6851 |
| Durana | city | Euskadi | Spain | 42.89 | -2.64 | 1669 | 63509 |
| Durango | city | Euskadi | Spain | 43.17 | -2.63 | 393 | 39354 |
| Durikiz | city | Euskadi | Spain | 43.38 | -2.63 | 830 | 3314 |
| Durruma | city | Euskadi | Spain | 42.86 | -2.31 | 2011 | 1466 |
| Durruma / San Román de San Millán | city | Euskadi | Spain | 42.86 | -2.31 | 2011 | 1466 |
| Durruma Kanpezu | city | Euskadi | Spain | 42.67 | -2.44 | 2555 | 715 |
| Durruma Kanpezu / San Román de Campezo | city | Euskadi | Spain | 42.67 | -2.44 | 2555 | 715 |
| Duruquiz | city | Euskadi | Spain | 43.38 | -2.63 | 830 | 3314 |
| Délica | city | Euskadi | Spain | 42.97 | -2.99 | 1669 | 6215 |