Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Green Hills | Populated Place | 178 | Frederick | 39 18 50 N | 077 16 30 W |
| Green Holly Pond | Lake | 0 | St. Mary's | 38 17 38 N | 076 27 50 W |
| Green Holly School | School | 29 | St. Mary's | 38 17 39 N | 076 28 57 W |
| Green Landing | Populated Place | 1 | Prince George's | 38 48 21 N | 076 42 31 W |
| Green Leek School (historical) | School | 43 | Charles | 38 29 09 N | 077 13 57 W |
| Green Manor | Populated Place | 8 | Prince George's | 38 57 31 N | 076 55 57 W |
| Green Manor Estates | Populated Place | 25 | Charles | 38 27 47 N | 077 15 11 W |
| Green Marsh Point | Cape | 0 | Talbot | 38 44 55 N | 076 20 32 W |
| Green Meadow | Populated Place | 264 | Baltimore | 39 43 08 N | 076 40 07 W |
| Green Meadow Cemetery | Cemetery | 353 | Allegany | 39 40 36 N | 078 37 23 W |
| Green Meadows | Populated Place | 37 | Calvert | 38 38 15 N | 076 37 05 W |
| Green Meadows | Populated Place | 53 | Charles | 38 37 14 N | 077 05 19 W |
| Green Meadows | Populated Place | 178 | Howard | 39 17 05 N | 077 01 11 W |
| Green Meadows | Populated Place | 17 | Prince George's | 38 58 03 N | 076 58 43 W |
| Green Meadows (subdivision) | Populated Place | 159 | Carroll | 39 39 00 N | 077 10 05 W |
| Green Mount Cemetery | Cemetery | 12 | Caroline | 38 55 26 N | 075 56 42 W |
| Green Point | Cape | 3 | Cecil | 39 31 59 N | 075 49 23 W |
| Green Point | Cape | 1 | Queen Anne's | 39 04 14 N | 076 05 09 W |
| Green Point | Cape | 0 | Worcester | 38 13 53 N | 075 10 14 W |
| Green Point Creek | Stream | | Worcester | 38 13 57 N | 075 10 26 W |
| Green Point Farm (historical) | Locale | 6 | Kent | 39 17 13 N | 076 09 48 W |
| Green Point Wharf | Locale | 6 | Kent | 39 16 56 N | 076 10 03 W |
| Green Ridge | Populated Place | 171 | Allegany | 39 35 37 N | 078 25 43 W |
| Green Ridge | Populated Place | 116 | Baltimore | 39 25 09 N | 076 36 45 W |
| Green Ridge | Populated Place | 131 | Harford | 39 32 42 N | 076 18 19 W |
| Green Ridge | Ridge | 345 | Allegany | 39 41 25 N | 078 32 13 W |
| Green Ridge | Ridge | 396 | Allegany | 39 42 18 N | 078 25 33 W |
| Green Ridge Mobile Home Park | Populated Place | 2 | Worcester | 38 20 11 N | 075 07 28 W |
| Green Road Manor | Populated Place | 180 | Harford | 39 32 23 N | 076 28 45 W |
| Green Run | Stream | | Wicomico | 38 25 42 N | 075 19 57 W |
| Green Run Bay | Bay | -3 | Worcester | 38 04 49 N | 075 13 17 W |
| Green Sanctuary Memorial Park Cemetery | Cemetery | 124 | Baltimore | 39 19 48 N | 076 47 57 W |
| Green Spring | Populated Place | 61 | Charles | 38 36 01 N | 076 46 30 W |
| Green Spring Cemetery | Cemetery | 175 | Washington | 39 37 31 N | 077 58 00 W |
| Green Spring Furnace | Populated Place | 136 | Washington | 39 37 21 N | 077 58 28 W |
| Green Spring Golf Course | Locale | 133 | Baltimore | 39 24 34 N | 076 45 03 W |
| Green Spring Junction | Populated Place | 140 | Baltimore | 39 24 32 N | 076 46 17 W |
| Green Spring Run | Stream | | Washington | 39 36 25 N | 077 58 09 W |
| Green Spring Valley | Valley | | Baltimore | 39 24 48 N | 076 39 58 W |
| Green Spring Valley Country Club | Locale | 134 | Baltimore | 39 24 35 N | 076 45 09 W |
| Green Spring Valley Hunt Club | Locale | 160 | Baltimore | 39 24 09 N | 076 45 17 W |
| Green Spring Valley School | School | 121 | Baltimore (city) | 39 22 09 N | 076 40 40 W |
| Green Springs | Locale | 12 | St. Mary's | 38 19 51 N | 076 48 48 W |
| Green Springs Cemetery | Cemetery | 125 | Harford | 39 35 07 N | 076 12 16 W |
| Green Springs Church | Church | 126 | Harford | 39 35 07 N | 076 12 17 W |
| Green Springs Hills | Populated Place | 67 | Harford | 39 27 27 N | 076 21 52 W |
| Green Straits | Channel | -3 | Somerset | 37 54 40 N | 075 53 02 W |
| Green Terrace Heliport | Airport | 95 | Baltimore | 39 24 09 N | 076 30 18 W |
| Green Tree Manor | Populated Place | 96 | Montgomery | 39 00 31 N | 077 07 50 W |
| Green Valley | Populated Place | 121 | Frederick | 39 18 33 N | 077 17 50 W |
| Green Valley | Populated Place | 203 | Harford | 39 35 48 N | 076 29 18 W |
| Green Valley (subdivision) | Populated Place | 34 | Harford | 39 31 07 N | 076 09 34 W |
| Green Valley Conservation Park | Park | 137 | Montgomery | 39 10 35 N | 077 10 01 W |
| Green Valley Elementary School | School | 188 | Frederick | 39 20 35 N | 077 15 56 W |
| Green Valley Elementary School | School | 50 | Prince George's | 38 50 26 N | 076 57 51 W |
| Green Valley North | Populated Place | 184 | Baltimore | 39 27 08 N | 076 43 15 W |
| Green Valley School (historical) | School | 154 | Carroll | 39 40 38 N | 077 05 25 W |
| Green Village | Populated Place | 103 | Frederick | 39 29 51 N | 077 22 12 W |
| Green Wood Knolls | Populated Place | 107 | Montgomery | 39 04 18 N | 077 04 13 W |
| Greenbank Farms | Populated Place | 11 | Cecil | 39 33 37 N | 076 00 18 W |
| Greenbelt | Populated Place | 48 | Prince George's | 39 00 16 N | 076 52 32 W |
| Greenbelt Baptist Church | Church | 42 | Prince George's | 39 00 24 N | 076 52 60 W |
| Greenbelt Branch Branch Library | Building | 50 | Prince George's | 39 00 03 N | 076 52 46 W |
| Greenbelt Branch Prince George's County Memorial Library | Building | 47 | Prince George's | 39 00 03 N | 076 52 49 W |
| Greenbelt Cemetery | Cemetery | 48 | Prince George's | 39 00 33 N | 076 53 37 W |
| Greenbelt Community Church | Church | 50 | Prince George's | 39 00 18 N | 076 52 33 W |
| Greenbelt Dam | Dam | 53 | Prince George's | 39 00 00 N | 076 53 59 W |
| Greenbelt Elementary School | School | 61 | Prince George's | 39 00 40 N | 076 52 33 W |
| Greenbelt Lake | Reservoir | 53 | Prince George's | 39 00 00 N | 076 53 59 W |
| Greenbelt Lake | Reservoir | 32 | Prince George's | 39 00 10 N | 076 53 27 W |
| Greenbelt Lake Park | Park | 38 | Prince George's | 39 00 17 N | 076 53 17 W |
| Greenbelt Metro Station | Locale | 22 | Prince George's | 39 00 41 N | 076 54 42 W |
| Greenbelt Middle School | School | 56 | Prince George's | 38 59 52 N | 076 54 06 W |
| Greenbelt Park | Park | 34 | Prince George's | 38 59 02 N | 076 53 35 W |
| Greenbelt Police Department | Building | | Prince George's | 39 01 05 N | 077 29 15 W |
| Greenbelt Volunteer Fire Department and Rescue Squad Company 35 | Building | | Prince George's | 39 00 45 N | 077 28 21 W |
| Greenberry Hills | Populated Place | 189 | Washington | 39 37 43 N | 077 45 16 W |
| Greenbriar | Populated Place | 47 | Anne Arundel | 39 09 11 N | 076 42 21 W |
| Greenbriar (subdivision) | Populated Place | 19 | Anne Arundel | 38 58 18 N | 076 31 34 W |
| Greenbriar Gardens (subdivision) | Populated Place | 12 | Anne Arundel | 38 58 02 N | 076 31 32 W |
| Greenbriar Lake | Reservoir | 218 | Washington | 39 32 30 N | 077 37 29 W |
| Greenbriar State Park Dike Dam | Dam | 218 | Washington | 39 32 30 N | 077 37 29 W |
| Greenbrier | Locale | 34 | St. Mary's | 38 19 02 N | 076 38 39 W |
| Greenbrier | Populated Place | 147 | Baltimore | 39 23 45 N | 076 35 25 W |
| Greenbrier | Populated Place | 239 | Carroll | 39 34 33 N | 076 54 32 W |
| Greenbrier | Populated Place | 104 | Frederick | 39 28 53 N | 077 19 19 W |
| Greenbrier | Populated Place | 216 | Washington | 39 32 59 N | 077 37 15 W |
| Greenbrier Baptist Church | Church | 164 | Washington | 39 34 17 N | 077 38 47 W |
| Greenbrier Branch | Stream | | Montgomery | 39 03 15 N | 077 15 03 W |
| Greenbrier Elementary School | School | 183 | Washington | 39 33 26 N | 077 37 48 W |
| Greenbrier Hills | Populated Place | 91 | Harford | 39 32 30 N | 076 19 24 W |
| Greenbrier Point | Cape | 4 | Cecil | 39 27 39 N | 075 51 34 W |
| Greenbrier State Park | Park | 313 | Washington | 39 32 10 N | 077 37 25 W |
| Greenbury Point | Cape | 2 | Anne Arundel | 38 58 30 N | 076 27 15 W |
| Greenbury Point Shoal Light | Locale | -11 | Anne Arundel | 38 58 05 N | 076 27 12 W |
| Greenbush Point | Cape | 9 | Cecil | 39 27 40 N | 075 59 13 W |
| Greencastle Elementary School | School | 112 | Montgomery | 39 04 47 N | 076 56 39 W |
| Greencastle Manor | Populated Place | 88 | Prince George's | 39 04 29 N | 076 55 26 W |
| Greencroft | Populated Place | 109 | Baltimore | 39 30 47 N | 076 41 10 W |
| Greendale Estates | Populated Place | 139 | Harford | 39 31 58 N | 076 29 34 W |
| Greendale School | School | 40 | Prince George's | 38 53 31 N | 076 54 16 W |
| Greene Branch | Stream | | Baltimore | 39 30 18 N | 076 37 12 W |
| Greene Fields | Populated Place | 152 | Howard | 39 11 24 N | 076 57 24 W |
| Greene Tree | Populated Place | 171 | Baltimore | 39 23 26 N | 076 44 02 W |
| Greenfield | Populated Place | 182 | Baltimore | 39 32 09 N | 076 32 07 W |
| Greenfield | Populated Place | 252 | Carroll | 39 42 44 N | 077 00 09 W |
| Greenfield Acres | Populated Place | 116 | Cecil | 39 40 07 N | 076 04 06 W |
| Greenfield Acres | Populated Place | 113 | Frederick | 39 15 36 N | 077 27 04 W |
| Greenfield Library | Building | | Anne Arundel | 38 58 50 N | 076 29 29 W |
| Greenfield Mills | Populated Place | 64 | Frederick | 39 15 50 N | 077 26 20 W |