| George Sharswood | Baltimore | MD |
| George Shiras | Baltimore | MD |
| George Vickers | Baltimore | MD |
| George Weems | Baltimore | MD |
| George W. Woodward | Baltimore | MD |
| Georgian Motel | Silver Spring | MD |
| Giant Food | Landover | MD |
| Giant Food | Baltimore | MD |
| Gibbs & Company | Baltimore | MD |
| Gladfelter Building | Baltimore | MD |
| Glass Containers | Baltimore | MD |
| Glendale High School | Takoma Park | MD |
| Glen L. Martin | Middle River | MD |
| Glenlogan | Baltimore | MD |
| Glenn L. Martin | Middle River | MD |
| Glenn L. Martin | Baltimore | MD |
| Glidden-Durkee | Baltimore | MD |
| Glidden Plant | Baltimore | MD |
| G.L. Martin | Baltimore | MD |
| G. L. Martin Airport | Middle River | MD |
| G. L. Martin Airport | Baltimore | MD |
| G. L. Martin/Mrtn Marietta | Baltimore | MD |
| Goddard Space | Greenbelt | MD |
| Golden Ring Mall | Rosedale | MD |
| Golden Ring Mall | Baltimore | MD |
| Good Samaritan Hospital | Baltimore | MD |
| Goodyear | Cumberland | MD |
| Gopher Mariner | Sparrows Point | MD |
| Goucher College, Krashaur Building | Baltimore | MD |
| Gould Street Power Plant | Baltimore | MD |
| Government Of District Of Columbia | Laurel | MD |
| Grace Division | Baltimore | MD |
| Grace Lines | Baltimore | MD |
| Grainsville | Baltimore | MD |
| Greater Baltimore Medical Center | Baltimore | MD |
| Greek Orthodox Church | Baltimore | MD |
| Green Contracting | Baltimore | MD |
| Greenspring High School | Baltimore | MD |
| Greenspring Montessori School - Tony Drive | Baltimore | MD |
| Greenwald Packing | Baltimore | MD |
| Grefco | Baltimore | MD |
| Grosvenor Park Apartments | Bethesda | MD |
| Guilford Elementary School | Columbia | MD |
| Guilford Industrial Park | Columbia | MD |
| Gulf Oil | Baltimore | MD |
| Gulf Stream | Baltimore | MD |
| Gunther Brewery | Baltimore | MD |
| G.W. Gail & Ax | Baltimore | MD |
| Gwyn Falls School | Baltimore | MD |
| Hagerstown City Power Plant | Hagerstown | MD |
