Alabama - Criteria: A (event)
| Leinkauf Historic District |
| Lincoln Mill and Mill Village Historic District |
| Loachapoka Historic District |
| Looney House |
| Lore Historic District |
| Louisville and Nashville Depot |
| Loveman, Joseph, & Loeb Department Store |
| Lowe Mill and Mill Village Historic Distric |
| Lower Commerce Street Historic District |
| Lower Dauphin Street Historic District |
| Lower Twentieth Street Residential Historic District |
| Lowndesboro Historic District |
| Lowndes County Courthouse |
| Luverne Historic District |
| Lyric Theatre |
| Macon County Courthouse |
| Macon County High School |
| Madison Station Historic District |
| Magee, Jacob, House |
| Magnolia Avenue South Historic District |
| Magnolia Cemetery including Mobile National Cemetery |
| Magnolia Springs Historic District |
| Main Street Historic District |
| Malbis Plantation |
| Maple Hill Cemetery |
| Marion Courthouse Square Historic District |
| Marion Female Seminary |
| May and Cooney Dry Goods Company |
| McCosh Grist Mill |
| McCrary House |
| McFarland Heights |
| McGehee-Stringfellow House |
| McKleroy-Wilson-Kirby House |
| McMahon, John, House |
| Mentone Springs Hotel |
| Merrimack Mill Village Historic District |
| Merritt School |
| Midtown Historic District |
| Miles Memorial College Historic District |
| Miller-Martin Town House |
| Miller-O'Donnell House |
| Millwood |
| Milner Heights Historic District |
| Mobile City Hall |
| Mobile City Hospital |
| Monroeville Downtown Historic District |
| Monterey Place |
| Monte Sano Railroad Workers' House |
| Montgomery Greyhound Bus Station |
| MONTGOMERY (snagboat) |
| Montgomery Union Station and Trainshed |
| Montgomery Veterans Administration Hospital Historic District |
| Moore Store |
| Moor-Webb-Holmes Plantation |
| Morgan-Curtis House |
| Morris Avenue-First Avenue North Historic District |
| Moulton Courthouse Square Historic District |
| Mountain Brook Estates Building |
| Mount Ararat Baptist Church |
| Mount Sinai School |
| Mount Zion Baptist Church |
| Mt. Olive Missionary Baptist Church No.1 |
| Mt. Zion AME Zion Church |
| Murphey, Dr. William E., House |
| Murphy-Collins House |
| Murphy High School |
| Muscle Shoals Sound Studio |
| Nectar Covered Bridge |
| Nettles, Isaac, Gravestones |
| Neutral Buoyancy Space Simulator |
| New Decatur-Albany Historic District |
| New Evergreen Commercial Historic District |
| New Hope Baptist Church |
| New Hope Rosenwald School |
| New Pilgrim Baptist Church |
| New Rising Star Baptist Church |
| Newton, Rev. Thomas, House |
| Nitrate Village No. 1 Historic District |
| Noble, Samuel, Monument |
| Nonnenmacher Bakery |
| North Lakeview Industrial District |
| North Main Street Historic District |
| Northport Historic District |
| Norwood Historic District |
| Oakey Streak Methodist Episcopal Church |
| Oak Grove School |
| Oak Hill Historic District |
| Oates-Reynolds Memorial Building |
| Old Athens, Alabama Main Post Office |
| Old Brick Presbyterian Church |
| Old Dauphin Way Historic District |
| Old Jail |
| Old Monroe County Courthouse |
| Old Observatory |
| Old Pell City Historic District |
| Old Rotation |
| Old St. Stephens Site |
| Opp Commercial Historic District |
| Otey, William Madison, House |
| Overton Farm |
Data from United States Park Service and Wikidata
