| Name | What | Region | Country | Lat | Long | Elev Ft. | Pop Est |
| Dabalia | city | Departement de Diffa | Niger | 13.4 | 10.95 | 1072 | 2199 |
| Daballa | city | Departement de Diffa | Niger | 13.4 | 10.95 | 1072 | 2199 |
| Dagaya | city | Departement de Diffa | Niger | 13.55 | 13.0666667 | 915 | 2346 |
| Dandaloa | city | Departement de Diffa | Niger | 14.3833333 | 13.3333333 | 918 | 32 |
| Deddere | city | Departement de Diffa | Niger | 13.9 | 11.4 | 1049 | 859 |
| Deddéré | city | Departement de Diffa | Niger | 13.9 | 11.4 | 1049 | 859 |
| Dedere | city | Departement de Diffa | Niger | 13.9 | 11.4 | 1049 | 859 |
| Deissa | city | Departement de Diffa | Niger | 13.2333333 | 12.4666667 | 931 | 1982 |
| Deoua | city | Departement de Diffa | Niger | 13.4166667 | 12.8166667 | 908 | 2369 |
| Dewa | city | Departement de Diffa | Niger | 13.4166667 | 12.8166667 | 908 | 2369 |
| Deïssa | city | Departement de Diffa | Niger | 13.2333333 | 12.4666667 | 931 | 1982 |
| Diabala | city | Departement de Diffa | Niger | 13.75 | 13.3166667 | 889 | 1619 |
| Diakime | city | Departement de Diffa | Niger | 14.4 | 13.45 | 902 | 330 |
| Diakimé | city | Departement de Diffa | Niger | 14.4 | 13.45 | 902 | 330 |
| Dietkorom | city | Departement de Diffa | Niger | 13.3666667 | 11.6333333 | 1102 | 1073 |
| Dietkorom | city | Departement de Diffa | Niger | 13.6833333 | 12.05 | 941 | 859 |
| Diffa | city | Departement de Diffa | Niger | 13.3155556 | 12.6088889 | 938 | 1481 |
| Digueoua | city | Departement de Diffa | Niger | 14.05 | 11.2333333 | 1138 | 815 |
| Diguia | city | Departement de Diffa | Niger | 14.05 | 11.2333333 | 1138 | 815 |
| Diguéoua | city | Departement de Diffa | Niger | 14.05 | 11.2333333 | 1138 | 815 |
| Dilia Tehfidinga | city | Departement de Diffa | Niger | 15.2666667 | 12.1 | 980 | 29 |
| Dillia Tefidinga | city | Departement de Diffa | Niger | 15.2666667 | 12.1 | 980 | 29 |
| Dillia Tehfidinga | city | Departement de Diffa | Niger | 15.2666667 | 12.1 | 980 | 29 |
| Dillia Téfidinga | city | Departement de Diffa | Niger | 15.2666667 | 12.1 | 980 | 29 |
| Ditchimba | city | Departement de Diffa | Niger | 14.0833333 | 13 | 967 | 30 |
| Djaboulam | city | Departement de Diffa | Niger | 13.5333333 | 13.0833333 | 941 | 2584 |
| Djibouloua | city | Departement de Diffa | Niger | 14.0333333 | 13.0166667 | 987 | 31 |
| Djibri | city | Departement de Diffa | Niger | 13.9833333 | 13.0666667 | 925 | 29 |
| Djoukoutouri | city | Departement de Diffa | Niger | 13.55 | 13.15 | 938 | 2330 |
| Douri | city | Departement de Diffa | Niger | 13.9 | 13.15 | 898 | 646 |
| Douro | city | Departement de Diffa | Niger | 13.1 | 12.4166667 | 935 | 766 |
| Duro | city | Departement de Diffa | Niger | 13.1 | 12.4166667 | 935 | 766 |
| Dzituma | city | Departement de Diffa | Niger | 13.6 | 12.1833333 | 938 | 2017 |
| Dzitumma | city | Departement de Diffa | Niger | 13.6 | 12.1833333 | 938 | 2017 |
| Déoua | city | Departement de Diffa | Niger | 13.4166667 | 12.8166667 | 908 | 2369 |
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