Georgia - Significance region: Local
| Liberty Hall |
| Liberty Hill |
| Lilly Historic District |
| Lincolnton Historic District |
| Linder, Roscoe Conklin, House |
| Lindridge-Martin Manor Historic District |
| Lines, Samuel Shepard, House |
| Lithonia Historic District |
| Lockhart-Cosby Plantation |
| Locust Grove Historic District |
| Locust Grove Institute Academic Building |
| Loeb, Sol, Building-Garrett-Joy Building |
| Logan Building |
| Lone Oak Academy |
| Long Cane Historic District |
| Long, Crawford W., Memorial Hospital |
| Longview-Huntley Hills Historic District |
| Lookout Mountain Hotel |
| Lott Cemetery |
| Loudermilk Boarding House |
| Louvale Church Row Historic District |
| Lower Avenue A Historic District |
| Lula Residential Historic District |
| Lumpkin Commercial Historic District |
| Lumpkin County Jail |
| Lyons Woman's Club House |
| Mable, Robert, House and Cemetery |
| MacIntyre Park and MacIntyre Park High School |
| Macon Railway and Light Company Substation |
| Madden, Charles, House |
| Magnolia Park Historic District |
| Manchester Community Building |
| Mandeville Mills and Mill Village Historic District |
| Mann, John T., House |
| Manor School |
| Manuel's Tavern |
| Marian Apartments |
| Market Building |
| Marsh-Warthen House |
| Martin Elementary School |
| Martin Historic District |
| Martin, William C., House |
| Masonic Lodge No. 238 |
| Mathews, John Frank, Plantation |
| Mathis House |
| Matthews House |
| Mauk School |
| Mauldin House |
| Maxeys Historic District |
| Mays-Boddie House |
| McArdle House |
| McCanaan Missionary Baptist Church and Cemetery |
| McCarty Subdivision Historic District |
| McConnell Historic District |
| McCrary, DeWitt, House |
| McCurry-Kidd House |
| McDaniel-Huie Place |
| McDaniel, John and Effie, House |
| McDaniel Street Historic District |
| McDonough-Adams-Kings Highway Historic District |
| McDonough Historic District |
| McDougald, John A., House |
| McKinney, Dr. W. T., House |
| McMillan-Garrison House |
| McMillan, Robert, House |
| McMullan-Vickery Farm |
| McMurray House |
| McRae, Max and Emma Sue, House |
| McRee, James Price, House |
| Means Street Historic District |
| Mechanics Engine House No. 4 |
| Mechanicsville School |
| Medical Arts Building |
| Meredith, Dr. Owen, House |
| Meredith, Kenneth and Hazel, House |
| Meriwether County Courthouse |
| Meriwether County Jail |
| Merritt-Ragan House |
| Metcalfe Historic District |
| Methodist Cemetery |
| Methodist Center |
| Methodist Tabernacle |
| Metter Downtown Historic District |
| Metter High School |
| Midtown Historic District |
| Midway Presbyterian Church and Cemetery |
| Mill Creek Plantation |
| Milledge Circle Historic District |
| Millen High School |
| Miller, A.L., High School and A.L. Miller Junior High School |
| Miller Brothers Farm |
| Miller, Dr. Thomas B., House |
| Miller, Henry and Lura, House |
| Mills House and Smokehouse |
| Milner-Walker House |
| Mineral Bluff Depot |
| Mizell, William, Sr., House |
| Monland Place Historic District |
| Monroe and Walton Mills Historic District |
| Monroe City Hall |
Data from United States Park Service and Wikidata
