Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Denby Hill | Populated Place | 19 | St. Mary's | 38 17 17 N | 076 46 33 W |
| Dendor Mar Estates | Populated Place | 210 | Howard | 39 18 22 N | 077 08 19 W |
| Denit Estates | Populated Place | 143 | Montgomery | 39 12 19 N | 077 01 33 W |
| Denmore Park | Populated Place | 129 | Baltimore (city) | 39 20 42 N | 076 40 16 W |
| Denney Branch | Stream | | Worcester | 38 13 37 N | 075 34 28 W |
| Denneys Delight | Populated Place | 183 | Frederick | 39 29 15 N | 077 15 42 W |
| Dennings | Populated Place | 242 | Carroll | 39 29 30 N | 077 04 20 W |
| Dennis (historical) | Populated Place | 100 | Frederick | 39 21 59 N | 077 19 59 W |
| Dennis Avenue Elementary School (historical) | School | 110 | Montgomery | 39 01 29 N | 077 02 34 W |
| Dennis Cemetery | Cemetery | 12 | Wicomico | 38 22 50 N | 075 21 27 W |
| Dennis Creek | Stream | | Dorchester | 38 32 59 N | 075 42 59 W |
| Dennis Creek | Stream | | Wicomico | 38 21 36 N | 075 47 42 W |
| Dennis Point | Cape | 3 | St. Mary's | 38 09 26 N | 076 28 10 W |
| Dennis Swamp | Swamp | 3 | Worcester | 38 00 53 N | 075 35 52 W |
| Denson Dock Creek | Stream | | Wicomico | 38 16 41 N | 075 52 07 W |
| Denton | Populated Place | 13 | Caroline | 38 53 04 N | 075 49 38 W |
| Denton Bridge | Bridge | -3 | Caroline | 38 53 18 N | 075 50 19 W |
| Denton Cemetery | Cemetery | 7 | Caroline | 38 53 21 N | 075 50 32 W |
| Denton Church of the Brethren | Church | 12 | Caroline | 38 52 58 N | 075 49 36 W |
| Denton Community Park | Park | 12 | Caroline | 38 52 58 N | 075 49 48 W |
| Denton Elementary School | School | 11 | Caroline | 38 52 11 N | 075 49 54 W |
| Denton Ferry (historical) | Crossing | -3 | Caroline | 38 53 18 N | 075 50 19 W |
| Denton Historic District | Park | 6 | Caroline | 38 53 22 N | 075 49 46 W |
| Denton Plaza Shopping Center | Locale | 11 | Caroline | 38 52 27 N | 075 49 34 W |
| Denton Police Department | Building | | Caroline | 39 28 51 N | 076 23 20 W |
| Denton Post Office | Post Office | 13 | Caroline | 38 53 08 N | 075 49 44 W |
| Denton Run | Stream | | Charles | 38 27 29 N | 076 51 30 W |
| Denton Town Hall | Building | 2 | Caroline | 38 53 25 N | 075 49 54 W |
| Denton Volunteer Fire Company | Building | | Caroline | 39 27 43 N | 076 23 05 W |
| Dentsville | Populated Place | 56 | Charles | 38 28 54 N | 076 53 33 W |
| Dentsville Bridge | Bridge | 10 | Charles | 38 29 26 N | 076 55 35 W |
| Department of Health and Human Services | Building | 110 | Montgomery | 39 03 44 N | 077 06 46 W |
| Depford | Locale | 34 | St. Mary's | 38 18 13 N | 076 30 29 W |
| Depot Pond | Reservoir | 4 | Prince George's | 38 48 59 N | 076 44 31 W |
| Der Spring Farms | Populated Place | 196 | Frederick | 39 25 10 N | 077 31 04 W |
| Derby Farms | Populated Place | 39 | Anne Arundel | 39 07 28 N | 076 39 47 W |
| Derr Hill | Summit | 454 | Frederick | 39 42 03 N | 077 24 08 W |
| Derwood | Populated Place | 143 | Montgomery | 39 07 02 N | 077 09 40 W |
| Derwood Alliance Church | Church | 127 | Montgomery | 39 07 36 N | 077 09 00 W |
| Derwood Bible Church | Church | 141 | Montgomery | 39 07 07 N | 077 09 34 W |
| Derwood Experimental Laboratory | Building | 144 | Montgomery | 39 07 15 N | 077 09 12 W |
| Derwood Industrial Park | Locale | 130 | Montgomery | 39 06 15 N | 077 09 09 W |
| Derwood Post Office | Post Office | 150 | Montgomery | 39 08 42 N | 077 08 39 W |
| DeShields Cemetery | Cemetery | 3 | Talbot | 38 49 40 N | 076 10 03 W |
| DeShields United Methodist Church | Church | 3 | Talbot | 38 49 39 N | 076 10 02 W |
| DeSoto Road Business Park | Locale | 36 | Baltimore (city) | 39 16 18 N | 076 39 56 W |
| Detmold | Populated Place | 437 | Allegany | 39 33 15 N | 078 59 22 W |
| Detmold Hill | Summit | 763 | Garrett | 39 35 15 N | 079 00 21 W |
| Detour | Populated Place | 104 | Carroll | 39 36 14 N | 077 16 05 W |
| Detour Methodist Protestant Church | Church | 105 | Carroll | 39 36 09 N | 077 16 00 W |
| Detour Post Office | Post Office | 103 | Carroll | 39 36 13 N | 077 16 06 W |
| Detwiler School | School | 83 | Prince George's | 38 50 55 N | 076 54 32 W |
| Development Run | Stream | | Anne Arundel | 38 52 24 N | 076 36 13 W |
| Devil Branch | Stream | | Frederick | 39 29 16 N | 077 21 23 W |
| Devil Island | Island | 0 | Worcester | 38 24 44 N | 075 04 12 W |
| Devilbiss Bridge | Bridge | 82 | Frederick | 39 30 26 N | 077 22 37 W |
| Devilbiss Estates | Populated Place | 136 | Frederick | 39 35 47 N | 077 25 09 W |
| Devilbiss Science Hall | Building | 9 | Wicomico | 38 20 41 N | 075 36 24 W |
| Devils Alley | Valley | | Allegany | 39 36 23 N | 078 25 44 W |
| Devils Alley Campground | Locale | 148 | Allegany | 39 36 25 N | 078 25 48 W |
| Devils Backbone | Summit | 156 | Washington | 39 32 52 N | 077 42 16 W |
| Devils Backbone County Park | Park | 118 | Washington | 39 32 21 N | 077 42 37 W |
| Devils Nest | Basin | 40 | Charles | 38 35 58 N | 076 48 42 W |
| Devils Reach | Area | 6 | Kent | 39 10 41 N | 076 03 20 W |
| Devils Woodyard | Woods | 1 | Dorchester | 38 27 39 N | 075 51 40 W |
| Devon Farms | Populated Place | 100 | Frederick | 39 30 28 N | 077 22 28 W |
| Devonshire | Populated Place | 39 | Anne Arundel | 39 03 12 N | 076 38 34 W |
| Devonshire Forest | Populated Place | 120 | Baltimore | 39 24 55 N | 076 37 03 W |
| Dewberry Estates | Populated Place | 209 | Carroll | 39 28 29 N | 076 57 34 W |
| DeWees Playground | Park | 111 | Baltimore (city) | 39 21 25 N | 076 36 12 W |
| Dewey Field | Park | 2 | Anne Arundel | 38 59 05 N | 076 28 59 W |
| Diamond Elementary School | School | 125 | Montgomery | 39 08 08 N | 077 14 21 W |
| Diamond Farm Park | Park | 119 | Montgomery | 39 08 11 N | 077 13 53 W |
| Diamond Farms (subdivision) | Populated Place | 128 | Montgomery | 39 08 05 N | 077 13 32 W |
| Diamond Farms Post Office | Post Office | 121 | Montgomery | 39 08 06 N | 077 08 35 W |
| Diamond Point Plaza Shopping Center | Locale | | Baltimore | 39 18 00 N | 076 29 50 W |
| Diamond Ridge Golf Course | Locale | 152 | Baltimore | 39 19 46 N | 076 46 25 W |
| Diamond Square Shopping Center | Locale | 128 | Montgomery | 39 08 37 N | 077 13 11 W |
| Diamond View | Populated Place | 220 | Montgomery | 39 17 17 N | 077 13 14 W |
| Dick Branch | Stream | | Baltimore | 39 29 09 N | 076 25 39 W |
| Dickens | Populated Place | 238 | Allegany | 39 42 26 N | 078 41 35 W |
| Dickenson Run | Stream | | Carroll | 39 32 45 N | 077 06 56 W |
| Dickerson | Populated Place | 106 | Montgomery | 39 13 12 N | 077 25 27 W |
| Dickerson African Methodist Episcopal Church | Church | 658 | Allegany | 39 39 35 N | 078 55 59 W |
| Dickerson Conservation Park | Park | 90 | Montgomery | 39 11 53 N | 077 27 46 W |
| Dickerson Post Office | Post Office | 104 | Montgomery | 39 13 08 N | 077 25 28 W |
| Dickerson Recreation Center | Park | 101 | Montgomery | 39 13 03 N | 077 25 18 W |
| Dickerson United Methodist Church | Church | 100 | Montgomery | 39 13 06 N | 077 25 36 W |
| Dickey Hill Elementary School | School | 118 | Baltimore (city) | 39 18 40 N | 076 42 14 W |
| Dickey Memorial Presbyterian Church | Church | 88 | Baltimore (city) | 39 18 52 N | 076 42 18 W |
| Dickeyville | Populated Place | 78 | Baltimore (city) | 39 19 08 N | 076 42 13 W |
| Dickeyville Historic District | Park | 77 | Baltimore (city) | 39 19 06 N | 076 42 15 W |
| Dickinson | Populated Place | 89 | Howard | 39 09 52 N | 076 52 04 W |
| Dickinson Bay | Bay | -3 | Talbot | 38 37 09 N | 076 05 43 W |
| Dickinson Park | Park | 95 | Howard | 39 09 58 N | 076 52 14 W |
| Dicks Point | Cape | -2 | Dorchester | 38 15 27 N | 076 10 08 W |
| Dicks Point | Cape | 0 | Dorchester | 38 22 39 N | 076 13 55 W |
| Dicovery Industrial Park | Locale | 134 | Montgomery | 39 05 20 N | 077 12 00 W |
| Diddie Richardson Park | Park | 107 | Cecil | 39 41 56 N | 076 03 23 W |
| Dieffenbach Pond | Lake | 0 | Dorchester | 38 26 22 N | 076 07 11 W |
| Diehl Residence Hall | Building | 602 | Allegany | 39 39 01 N | 078 55 49 W |
| Diehls Cross Roads | Locale | 11 | Kent | 39 15 37 N | 076 09 56 W |
| Dierssen Waterfowl Sanctuary | Park | 53 | Montgomery | 39 03 31 N | 077 18 13 W |
| Diffenbach Court Park | Park | 30 | Charles | 38 36 05 N | 077 09 40 W |
| Dill | Populated Place | 162 | Howard | 39 15 53 N | 077 00 49 W |
| Dill Road Bog | Swamp | 6 | Anne Arundel | 39 04 14 N | 076 31 54 W |
| Dillon Park | Populated Place | 75 | Prince George's | 38 51 57 N | 076 56 14 W |
| Dills Acres | Populated Place | 2 | Worcester | 38 18 00 N | 075 10 38 W |
| Dingle School (historical) | School | 247 | Allegany | 39 38 59 N | 078 47 07 W |
| Dining Facility | Building | | Baltimore (city) | 39 18 46 N | 076 39 31 W |