| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Dobridge | city | Maryland | United States | 39.20 | -77.02 | 370 | |
| Dodge Park | city | Maryland | United States | 38.93 | -76.88 | 98 | |
| Dodon | city | Maryland | United States | 38.90 | -76.62 | 98 | |
| Doe Run | city | Maryland | United States | 38.31 | -75.59 | 42 | |
| Dogtown | city | Maryland | United States | 39.51 | -77.77 | 403 | |
| Dogwood | city | Maryland | United States | 39.18 | -76.93 | 830 | |
| Dogwood Estates | city | Maryland | United States | 39.40 | -77.00 | 830 | |
| Dogwood Flats | city | Maryland | United States | 39.52 | -79.02 | 1669 | |
| Dogwood Hills | city | Maryland | United States | 39.43 | -76.56 | 830 | |
| Dogwood Trailer Park | city | Maryland | United States | 39.04 | -76.51 | 98 | |
| Dogwood Village | city | Maryland | United States | 39.35 | -75.88 | 49 | |
| Dogwood Village | city | Maryland | United States | 38.34 | -75.61 | 19 | |
| Dol Ray | city | Maryland | United States | 39.50 | -76.17 | 65 | |
| Dolvin | city | Maryland | United States | 38.93 | -76.08 | 49 | |
| Dominion | city | Maryland | United States | 38.95 | -76.28 | 3 | |
| Dominos Acres | city | Maryland | United States | 39.56 | -76.91 | 830 | |
| Doncaster | city | Maryland | United States | 38.50 | -77.21 | 98 | |
| Doncaster | city | Maryland | United States | 38.78 | -76.13 | 3 | |
| Doncaster (historical) | city | Maryland | United States | 38.86 | -76.19 | 3 | |
| Donghoregan | city | Maryland | United States | 39.26 | -76.92 | 387 | |
| Donleigh | city | Maryland | United States | 39.18 | -76.86 | 334 | |
| Donney Brook Farms | city | Maryland | United States | 39.67 | -76.78 | 830 | |
| Donnybrook | city | Maryland | United States | 39.39 | -76.59 | 830 | |
| Donovans Pier | city | Maryland | United States | 38.95 | -76.55 | 3 | |
| Dorado Hills | city | Maryland | United States | 39.04 | -76.47 | 98 | |
| Dorado Village | city | Maryland | United States | 39.04 | -76.47 | 98 | |
| Dorceytown | city | Maryland | United States | 39.39 | -77.14 | 830 | |
| Dorchester | city | Maryland | United States | 38.62 | -76.94 | 196 | |
| Dorchester Heights | city | Maryland | United States | 39.25 | -76.65 | 98 | |
| Dorchester Mobile Home Village | city | Maryland | United States | 38.55 | -76.03 | 3 | |
| Dorrs Corner | city | Maryland | United States | 39.07 | -76.63 | 98 | |
| Dorsey | city | Maryland | United States | 39.18 | -76.74 | 147 | |
| Dorsey Crossroads | city | Maryland | United States | 39.43 | -77.01 | 830 | |
| Dorsey Estates | city | Maryland | United States | 39.15 | -77.23 | 400 | |
| Dorsey Hall | city | Maryland | United States | 39.26 | -76.84 | 351 | |
| Dorsey Heights | city | Maryland | United States | 38.98 | -76.54 | 49 | |
| Dorsey Hill | city | Maryland | United States | 39.40 | -77.02 | 830 | |
| Dorseys Run (historical) | city | Maryland | United States | 39.31 | -76.83 | 390 | |
| Dory Court | city | Maryland | United States | 38.66 | -76.54 | 147 | |
| Dotsons Ridge | city | Maryland | United States | 39.46 | -77.09 | 830 | |
| Doub Meadow | city | Maryland | United States | 39.62 | -77.73 | 830 | |
| Double Creek Wood | city | Maryland | United States | 39.24 | -75.98 | 26 | |
| Double Hills Estates | city | Maryland | United States | 38.86 | -75.81 | 19 | |
| Double Oak Estates | city | Maryland | United States | 38.55 | -76.53 | 95 | |
| Double Tree Estates | city | Maryland | United States | 39.38 | -77.37 | 413 | |
| Doubs | city | Maryland | United States | 39.30 | -77.49 | 298 | |
| Doubs Mill | city | Maryland | United States | 39.58 | -77.65 | 830 | |
| Douglynn Farms | city | Maryland | United States | 38.40 | -75.17 | 9 | |
| Douglynne Woods | city | Maryland | United States | 38.35 | -75.21 | 26 | |
| Dove Ridge | city | Maryland | United States | 39.59 | -76.92 | 830 | |
| Dover | city | Maryland | United States | 39.51 | -76.77 | 351 | |
| Dover Acres | city | Maryland | United States | 38.77 | -76.05 | 45 | |
| Dowell | city | Maryland | United States | 38.35 | -76.46 | 13 | |
| Downes | city | Maryland | United States | 38.92 | -75.89 | 52 | |
| Downs on the Severn | city | Maryland | United States | 39.02 | -76.54 | 98 | |
| Downsville | city | Maryland | United States | 39.55 | -77.80 | 830 |