Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Holy Savior Catholic Church | Church | 1 | Worcester | 38 20 52 N | 075 04 47 W |
| Holy Spirit Catholic Church | Church | 2 | Harford | 39 24 39 N | 076 21 09 W |
| Holy Temple Church | Church | 7 | Wicomico | 38 18 25 N | 075 42 05 W |
| Holy Temple Church of God in Christ | Church | 6 | Wicomico | 38 22 12 N | 075 36 33 W |
| Holy Temple Pentecostal Church | Church | 54 | Baltimore (city) | 39 18 22 N | 076 38 14 W |
| Holy Trinity Baptist Church | Church | 6 | Wicomico | 38 22 36 N | 075 36 19 W |
| Holy Trinity Catholic Church | Church | 17 | Anne Arundel | 39 10 12 N | 076 37 58 W |
| Holy Trinity Cemetery | Cemetery | 197 | Carroll | 39 24 13 N | 076 57 16 W |
| Holy Trinity Cemetery | Cemetery | 133 | Harford | 39 33 38 N | 076 14 48 W |
| Holy Trinity Cemetery | Cemetery | 68 | Howard | 39 13 03 N | 076 44 04 W |
| Holy Trinity Cemetery | Cemetery | 61 | Prince George's | 38 58 29 N | 076 46 42 W |
| Holy Trinity Church | Church | 73 | Howard | 39 12 59 N | 076 44 07 W |
| Holy Trinity Church | Church | 57 | Prince George's | 38 58 22 N | 076 46 40 W |
| Holy Trinity Church | Church | 2 | Talbot | 38 41 03 N | 076 10 19 W |
| Holy Trinity Episcopal Church | Church | 61 | Baltimore (city) | 39 17 56 N | 076 39 17 W |
| Holy Trinity Episcopal Church | Church | 134 | Harford | 39 33 39 N | 076 14 48 W |
| Holy Trinity Episcopal Church (historical) | Church | 196 | Carroll | 39 24 12 N | 076 57 17 W |
| Holy Trinity Fathers Church | Church | 172 | Baltimore | 39 23 42 N | 076 44 12 W |
| Holy Trinity Lutheran Church | Church | 23 | Baltimore (city) | 39 18 58 N | 076 33 29 W |
| Holy Trinity Lutheran Church | Church | 82 | Prince George's | 39 06 10 N | 076 52 25 W |
| Holy Trinity Mission Seminary | School | 59 | Prince George's | 39 00 08 N | 076 58 47 W |
| Holy Trinity Missionary Cenacle | Church | 52 | Prince George's | 39 00 06 N | 076 58 25 W |
| Holy Trinity Russian Orthodox Church | Church | 28 | Baltimore (city) | 39 17 32 N | 076 35 33 W |
| Holy Trinity School | School | 18 | Anne Arundel | 39 10 10 N | 076 38 03 W |
| Home Acres | Populated Place | 73 | Prince George's | 39 02 30 N | 076 55 26 W |
| Home Farm | Populated Place | 205 | Carroll | 39 29 28 N | 076 56 08 W |
| Home Missionary Church | Church | 9 | Queen Anne's | 39 13 37 N | 075 55 42 W |
| Home Place | Populated Place | 16 | Calvert | 38 27 45 N | 076 31 15 W |
| Homecrest | Populated Place | 119 | Montgomery | 39 05 25 N | 077 03 19 W |
| Homeland | Populated Place | 125 | Baltimore (city) | 39 21 29 N | 076 37 28 W |
| Homeland Park | Populated Place | 46 | Anne Arundel | 39 11 36 N | 076 40 17 W |
| Homeland Shopping Center | Locale | 108 | Baltimore (city) | 39 21 22 N | 076 36 38 W |
| Homers Delight | Populated Place | 172 | Frederick | 39 25 43 N | 077 32 35 W |
| Homestead | Populated Place | 51 | Baltimore (city) | 39 19 18 N | 076 35 49 W |
| Homestead Estates | Populated Place | 99 | Montgomery | 39 03 11 N | 076 59 12 W |
| Homestead Park | Park | 103 | Harford | 39 31 53 N | 076 19 43 W |
| Homestead United Methodist Church | Church | 58 | Baltimore (city) | 39 19 22 N | 076 35 49 W |
| Homestead Village (subdivision) | Populated Place | 110 | Harford | 39 31 59 N | 076 19 54 W |
| Homewood | Populated Place | 229 | Allegany | 39 40 28 N | 078 47 38 W |
| Homewood | Populated Place | 115 | Montgomery | 39 01 31 N | 077 03 46 W |
| Homewood (subdivision) | Populated Place | 13 | Anne Arundel | 38 58 47 N | 076 30 42 W |
| Homewood (subdivision) | Populated Place | 7 | Worcester | 38 03 40 N | 075 33 16 W |
| Homewood Cove | Bay | 0 | Anne Arundel | 39 00 47 N | 076 25 56 W |
| Homewood Field | Park | 81 | Baltimore (city) | 39 20 00 N | 076 37 15 W |
| Homewood Friends Meeting House | Church | 54 | Baltimore (city) | 39 19 34 N | 076 37 01 W |
| Homewood Retirement Center | Building | 146 | Washington | 39 36 23 N | 077 47 51 W |
| Homewood School | School | 112 | Baltimore (city) | 39 21 10 N | 076 38 04 W |
| Homewood School | School | 149 | Howard | 39 14 12 N | 076 53 25 W |
| Homewood-Capital View Park | Park | 126 | Montgomery | 39 01 39 N | 077 03 34 W |
| Honey Branch | Stream | | Prince George's | 38 52 58 N | 076 40 34 W |
| Honey Cove Estates | Populated Place | 40 | Calvert | 38 28 23 N | 076 36 28 W |
| Honey Hill | Populated Place | 160 | Frederick | 39 23 21 N | 077 18 29 W |
| Honeygo Run | Stream | | Baltimore | 39 22 38 N | 076 25 39 W |
| Honeysuckle Cemetery | Cemetery | 135 | Baltimore | 39 23 30 N | 076 34 24 W |
| Honeysuckle Hollow | Populated Place | 124 | Cecil | 39 37 50 N | 076 05 59 W |
| Honeysuckle Hollow | Valley | | Anne Arundel | 38 51 46 N | 076 35 47 W |
| Honeysuckle Knoll | Populated Place | 5 | Cecil | 39 27 43 N | 075 52 54 W |
| Honeysuckle Ridge | Populated Place | 35 | Anne Arundel | 39 00 50 N | 076 34 44 W |
| Honga | Populated Place | 0 | Dorchester | 38 20 40 N | 076 13 47 W |
| Honga River | Stream | | Dorchester | 38 14 00 N | 076 05 59 W |
| Honga River Light | Locale | -6 | Dorchester | 38 13 55 N | 076 06 40 W |
| Honkers Rush | Stream | | Montgomery | 39 11 24 N | 077 12 23 W |
| Hood College | School | 102 | Frederick | 39 25 26 N | 077 25 04 W |
| Hood Convalescent Home | Hospital | 123 | Baltimore (city) | 39 17 10 N | 076 42 40 W |
| Hood Mill (historical) | Locale | 74 | Baltimore | 39 18 53 N | 076 47 35 W |
| Hood Point | Cape | 3 | Queen Anne's | 38 56 33 N | 076 14 04 W |
| Hoods Mill | Populated Place | 132 | Carroll | 39 21 17 N | 077 00 42 W |
| Hookers Branch | Stream | | Montgomery | 39 05 29 N | 077 19 42 W |
| Hooks Lane Executive Park | Locale | 165 | Baltimore | 39 23 13 N | 076 44 00 W |
| Hoop Pole Hill | Summit | 872 | Garrett | 39 28 27 N | 079 21 20 W |
| Hoop Pole Ridge | Ridge | 817 | Garrett | 39 29 38 N | 079 19 26 W |
| Hoop Pole Run | Stream | | Garrett | 39 29 04 N | 079 19 13 W |
| Hooper Cove | Bay | -3 | Dorchester | 38 30 01 N | 076 17 05 W |
| Hooper House | Building | | Baltimore | 39 24 30 N | 076 35 32 W |
| Hooper Island Lighthouse | Locale | 2 | Dorchester | 38 15 22 N | 076 15 00 W |
| Hooper Island Pier (historical) | Locale | -3 | Dorchester | 38 15 43 N | 076 10 29 W |
| Hooper Islands | Island | 0 | Dorchester | 38 17 00 N | 076 11 19 W |
| Hooper Islands | Populated Place | 0 | Dorchester | 38 18 00 N | 076 12 29 W |
| Hooper Neck | Cape | 0 | Dorchester | 38 29 25 N | 076 17 52 W |
| Hooper Point | Cape | 5 | Dorchester | 38 30 16 N | 076 17 03 W |
| Hooper Strait | Channel | -2 | Dorchester | 38 12 51 N | 076 03 01 W |
| Hooper Strait Light | Locale | 2 | Dorchester | 38 13 36 N | 076 04 33 W |
| Hoopers Heliport | Airport | 1 | Worcester | 38 18 41 N | 075 07 14 W |
| Hoopers Memorial Church | Church | 0 | Dorchester | 38 15 54 N | 076 10 58 W |
| Hoopers Neck | Cape | 3 | Calvert | 38 21 45 N | 076 27 59 W |
| Hoopers Neck | Populated Place | 1 | Calvert | 38 21 18 N | 076 27 55 W |
| Hoopersville | Populated Place | 0 | Dorchester | 38 15 40 N | 076 10 48 W |
| Hoops Branch | Stream | | Harford | 39 33 02 N | 076 26 08 W |
| Hoot'N Hollow | Populated Place | 184 | Carroll | 39 43 06 N | 077 05 57 W |
| Hoot'N Hollow | Populated Place | 169 | Frederick | 39 22 55 N | 077 17 48 W |
| Hoover Library | Building | 258 | Carroll | 39 35 04 N | 077 00 07 W |
| Hop Point | Cape | 0 | Somerset | 37 59 04 N | 075 51 31 W |
| Hope | Populated Place | 20 | Queen Anne's | 39 02 31 N | 075 58 10 W |
| Hope Acres | Populated Place | 56 | Charles | 38 35 34 N | 076 58 20 W |
| Hope Chapel Cemetery | Cemetery | 20 | Anne Arundel | 38 54 29 N | 076 33 18 W |
| Hope Hill | Populated Place | 135 | Frederick | 39 20 00 N | 077 23 47 W |
| Hope Hill Cemetery | Cemetery | 153 | Frederick | 39 19 36 N | 077 23 09 W |
| Hope Hill United Methodist Church | Church | 114 | Frederick | 39 19 57 N | 077 24 03 W |
| Hope Meadows | Populated Place | 203 | Baltimore | 39 35 14 N | 076 39 57 W |
| Hope Point | Cape | 0 | Dorchester | 38 14 31 N | 076 04 13 W |
| Hope Valley Hills | Populated Place | 125 | Frederick | 39 19 01 N | 077 23 29 W |
| Hopeland Acres | Populated Place | 12 | Caroline | 38 45 37 N | 075 55 41 W |
| Hopes Chapel | Church | 20 | Anne Arundel | 38 54 30 N | 076 33 17 W |
| Hopes Chapel (historical) | Church | 15 | Anne Arundel | 38 54 54 N | 076 32 44 W |
| Hopes Chapel Cemetery | Cemetery | 26 | Anne Arundel | 38 54 56 N | 076 32 54 W |
| Hopes Chapel School (historical) | School | 19 | Anne Arundel | 38 54 57 N | 076 33 01 W |
| Hopewell | Locale | 2 | St. Mary's | 38 18 53 N | 076 28 54 W |
| Hopewell | Populated Place | 110 | Howard | 39 10 47 N | 076 50 08 W |
| Hopewell | Populated Place | 1 | Somerset | 38 00 22 N | 075 49 06 W |
| Hopewell Church | Church | 127 | Cecil | 39 38 40 N | 076 03 35 W |