Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Halsey Field House | Building | 2 | Anne Arundel | 38 58 39 N | 076 29 03 W |
| Hambleton | Populated Place | 17 | Anne Arundel | 38 57 24 N | 076 35 20 W |
| Hambleton | Populated Place | 15 | Talbot | 38 41 42 N | 076 03 52 W |
| Hambleton Cove | Bay | -2 | Talbot | 38 49 04 N | 076 13 46 W |
| Hambleton Creek | Stream | | Queen Anne's | 39 10 57 N | 076 02 34 W |
| Hambleton Island | Island | 0 | Talbot | 38 45 09 N | 076 13 47 W |
| Hambleton Point | Cape | -11 | Talbot | 38 49 17 N | 076 13 42 W |
| Hambleton Point | Cape | -5 | Talbot | 38 41 57 N | 076 08 34 W |
| Hambrooke Point | Cape | 0 | Dorchester | 38 35 34 N | 076 05 13 W |
| Hambrooks Bar | Bar | 3 | Dorchester | 38 35 31 N | 076 04 55 W |
| Hambrooks Bay | Bay | -3 | Dorchester | 38 35 20 N | 076 05 03 W |
| Hamburg Lookout Tower | Tower | 495 | Frederick | 39 30 36 N | 077 28 34 W |
| Hamilton | Populated Place | 38 | Baltimore | 39 19 20 N | 076 31 20 W |
| Hamilton | Populated Place | 104 | Baltimore (city) | 39 21 23 N | 076 33 25 W |
| Hamilton Branch Enoch Pratt Free Library | Building | 101 | Baltimore (city) | 39 21 23 N | 076 33 30 W |
| Hamilton Business School | School | 89 | Baltimore (city) | 39 21 00 N | 076 33 46 W |
| Hamilton Court (subdivision) | Populated Place | 23 | Harford | 39 30 40 N | 076 09 10 W |
| Hamilton Full Gospel Church | Church | 98 | Baltimore (city) | 39 21 29 N | 076 33 30 W |
| Hamilton Middle School | School | 90 | Baltimore (city) | 39 21 00 N | 076 33 16 W |
| Hamilton Nursing Center | Hospital | 102 | Baltimore (city) | 39 21 29 N | 076 33 25 W |
| Hamilton Park (subdivision) | Populated Place | 188 | Washington | 39 39 55 N | 077 43 19 W |
| Hamilton Park Shopping Center | Locale | 99 | Baltimore (city) | 39 22 03 N | 076 33 59 W |
| Hamilton Presbyterian Church | Church | 87 | Baltimore (city) | 39 21 12 N | 076 33 40 W |
| Hamilton Recreation Center | Park | 90 | Baltimore (city) | 39 21 01 N | 076 33 15 W |
| Hamilton Run | Stream | | Washington | 39 37 51 N | 077 42 23 W |
| Hamilton Run Shopping Center | Locale | 157 | Washington | 39 38 15 N | 077 42 43 W |
| Hamilton School | School | 100 | Baltimore (city) | 39 21 35 N | 076 33 25 W |
| Hamilton Station Baltimore Post Office | Post Office | 77 | Baltimore (city) | 39 20 47 N | 076 33 57 W |
| Hamlet Farms | Populated Place | 203 | Baltimore | 39 37 40 N | 076 41 07 W |
| Hamlet North | Populated Place | 152 | Montgomery | 39 08 40 N | 077 10 04 W |
| Hamlin Ditch | Canal | 12 | Wicomico | 38 23 37 N | 075 22 38 W |
| Hamlin Swamp | Swamp | 13 | Wicomico | 38 24 02 N | 075 23 14 W |
| Hammarlee | Populated Place | 8 | Anne Arundel | 39 10 32 N | 076 36 09 W |
| Hammel Glade | Swamp | 760 | Garrett | 39 29 18 N | 079 21 26 W |
| Hammock Point | Cape | 1 | Somerset | 37 57 58 N | 075 51 56 W |
| Hammond Branch | Stream | | Howard | 39 07 17 N | 076 49 01 W |
| Hammond Cemetery | Cemetery | 57 | Anne Arundel | 39 03 25 N | 076 40 55 W |
| Hammond Cemetery | Cemetery | 139 | Frederick | 39 24 35 N | 077 15 13 W |
| Hammond Cemetery | Cemetery | 15 | Wicomico | 38 21 01 N | 075 29 52 W |
| Hammond Elementary School | School | 112 | Howard | 39 08 53 N | 076 52 43 W |
| Hammond General Hospital (historical) | Hospital | 0 | St. Mary's | 38 02 55 N | 076 19 29 W |
| Hammond High School | School | 104 | Howard | 39 10 01 N | 076 51 37 W |
| Hammond Hills | Populated Place | 114 | Howard | 39 08 36 N | 076 53 19 W |
| Hammond Park | Park | 101 | Howard | 39 08 45 N | 076 53 02 W |
| Hammond Park | Populated Place | 55 | Anne Arundel | 39 04 34 N | 076 41 17 W |
| Hammond Park | Populated Place | 127 | Howard | 39 09 25 N | 076 53 07 W |
| Hammond Village | Populated Place | 122 | Howard | 39 09 08 N | 076 52 43 W |
| Hammond-Harwood House | Building | | Anne Arundel | 38 58 51 N | 076 29 18 W |
| Hammonds Estates | Populated Place | 182 | Carroll | 39 25 26 N | 076 57 24 W |
| Hammonds Lane Nursing Home | Hospital | 49 | Anne Arundel | 39 12 44 N | 076 37 37 W |
| Hammonds North Industrial Park | Locale | 11 | Anne Arundel | 39 13 34 N | 076 39 52 W |
| Hammonds Promise | Populated Place | 87 | Howard | 39 07 38 N | 076 50 54 W |
| Hammonds South Industrial Park | Locale | 26 | Anne Arundel | 39 13 08 N | 076 39 46 W |
| Hampden | Populated Place | 75 | Baltimore (city) | 39 19 51 N | 076 38 06 W |
| Hampden Branch Enoch Pratt Free Library | Building | 78 | Baltimore (city) | 39 19 56 N | 076 38 06 W |
| Hampden Elementary School | School | 78 | Baltimore (city) | 39 19 57 N | 076 37 49 W |
| Hampden Presbyterian Church | Church | 80 | Baltimore (city) | 39 19 56 N | 076 38 05 W |
| Hampden United Methodist Church | Church | 71 | Baltimore (city) | 39 19 47 N | 076 38 03 W |
| Hampden-Roland Park Station Baltimore Post Office | Post Office | 74 | Baltimore (city) | 39 19 49 N | 076 37 45 W |
| Hampshire | Populated Place | 185 | Baltimore | 39 30 58 N | 076 33 20 W |
| Hampshire | Populated Place | 63 | Charles | 38 37 20 N | 076 57 19 W |
| Hampshire Hill | Summit | 610 | Allegany | 39 30 01 N | 079 01 50 W |
| Hampshire Knolls | Populated Place | 40 | Prince George's | 38 58 05 N | 076 59 42 W |
| Hampshire Lake | Reservoir | 61 | Charles | 38 37 28 N | 076 57 37 W |
| Hampstead | Populated Place | 283 | Carroll | 39 36 17 N | 076 50 60 W |
| Hampstead Elementary School | School | 282 | Carroll | 39 36 28 N | 076 50 59 W |
| Hampstead Heights | Populated Place | 273 | Carroll | 39 37 09 N | 076 51 04 W |
| Hampstead Hill Elementary School | School | 13 | Baltimore (city) | 39 17 08 N | 076 34 33 W |
| Hampstead Hill Middle School | School | 14 | Baltimore (city) | 39 17 25 N | 076 34 22 W |
| Hampstead Memorial Park | Park | 265 | Carroll | 39 37 06 N | 076 51 20 W |
| Hampstead North Business Center | Locale | 257 | Carroll | 39 38 16 N | 076 51 54 W |
| Hampstead Police Department | Building | | Carroll | 40 00 51 N | 077 25 39 W |
| Hampstead Post Office | Post Office | 271 | Carroll | 39 36 28 N | 076 51 10 W |
| Hampstead Town Hall | Building | 278 | Carroll | 39 36 10 N | 076 51 12 W |
| Hampstead Valley (subdivision) | Populated Place | 271 | Carroll | 39 36 00 N | 076 50 48 W |
| Hampstead Volunteer Fire Engine and Hose Company Number 1 | Building | | Carroll | 40 01 04 N | 077 25 20 W |
| Hampton | Populated Place | 103 | Baltimore | 39 25 22 N | 076 35 05 W |
| Hampton | Populated Place | 3 | Talbot | 38 38 55 N | 076 06 34 W |
| Hampton Airport | Airport | 3 | St. Mary's | 38 13 50 N | 076 37 44 W |
| Hampton Chase | Populated Place | 21 | Anne Arundel | 39 08 40 N | 076 28 25 W |
| Hampton Court | Populated Place | 19 | Wicomico | 38 26 29 N | 075 29 52 W |
| Hampton East | Populated Place | 136 | Baltimore | 39 25 30 N | 076 34 16 W |
| Hampton Elementary School | School | 118 | Baltimore | 39 24 59 N | 076 36 10 W |
| Hampton Gardens | Populated Place | 125 | Baltimore | 39 25 10 N | 076 33 20 W |
| Hampton Heights | Populated Place | 42 | Calvert | 38 41 05 N | 076 39 25 W |
| Hampton Knolls | Populated Place | 209 | Carroll | 39 23 11 N | 077 07 44 W |
| Hampton Manor | Populated Place | 43 | Anne Arundel | 39 06 10 N | 076 35 49 W |
| Hampton Mansion | Building | | Baltimore | 39 24 58 N | 076 35 15 W |
| Hampton National Historic Site | Park | 115 | Baltimore | 39 25 02 N | 076 35 16 W |
| Hampton National Historical Site | Park | 116 | Baltimore | 39 24 58 N | 076 35 17 W |
| Hampton Ridge | Populated Place | 110 | Harford | 39 33 20 N | 076 19 59 W |
| Hampton Valley | Valley | | Frederick | 39 42 12 N | 077 21 11 W |
| Hampton Village | Populated Place | 103 | Baltimore | 39 25 00 N | 076 35 46 W |
| Hance Point | Cape | 2 | Cecil | 39 33 38 N | 075 58 07 W |
| Hance Point Creek | Stream | | Cecil | 39 33 29 N | 075 57 33 W |
| Hance Point Estates | Populated Place | 4 | Cecil | 39 33 28 N | 075 58 02 W |
| Hance Point Fishery | Locale | 0 | Cecil | 39 33 39 N | 075 58 09 W |
| Hance Pond | Lake | 28 | Prince George's | 39 03 02 N | 076 48 03 W |
| Hancock | Populated Place | 135 | Washington | 39 41 56 N | 078 10 47 W |
| Hancock Ambulance and Rescue Squad Company 59 | Building | | Washington | 40 10 20 N | 078 17 48 W |
| Hancock Cemetery | Cemetery | 3 | Anne Arundel | 39 08 04 N | 076 26 52 W |
| Hancock Cemetery | Cemetery | 8 | Worcester | 38 04 42 N | 075 27 35 W |
| Hancock Church of God | Church | 131 | Washington | 39 41 58 N | 078 10 54 W |
| Hancock Creek | Stream | | Worcester | 38 01 49 N | 075 22 50 W |
| Hancock Elementary School | School | 175 | Washington | 39 41 54 N | 078 11 49 W |
| Hancock Fire Company 5 | Building | | Washington | 40 10 32 N | 078 18 03 W |
| Hancock High School | School | 176 | Washington | 39 41 48 N | 078 11 50 W |
| Hancock Middle School | School | 175 | Washington | 39 41 49 N | 078 11 47 W |
| Hancock Post Office | Post Office | 141 | Washington | 39 42 12 N | 078 10 51 W |
| Hancock Run | Stream | | Charles | 38 25 37 N | 077 12 50 W |