Texas - Significance region: Local
| Love, Frank and Mellie, House |
| Loving County Courthouse |
| Lower Elgin Road Bridge at Wilbarger Creek |
| Lower South Grape Creek School |
| Lowry, Fayette C., House |
| Lubbock County Jail |
| Lubbock High School |
| Lubbock Post Office and Federal Building |
| Lucas, Joseph and Annie, House |
| Luce Hall |
| Luckenbach School |
| Luckett, H. P., House |
| Lufkin Land-Long Bell-Buck House |
| Lumpkin Building |
| Luna Jacal |
| Lund House |
| Lung House |
| Luther Hotel |
| Lynch-Probst House |
| Lynn County Courthouse |
| Macatee, Leonard W., House |
| Macedonia Baptist Church |
| Mackey, William, House |
| Maddox, John W., House |
| Magee, J. D., House |
| Magnolia Building |
| Magnolia Petroleum Company City Sales and Warehouse |
| Magnolias, The |
| Magoffin Historic District |
| Magoffin Homestead |
| Main Building, Blinn College |
| Main Building, Southwest Texas Normal School |
| Main Plaza |
| Main Street Historic District |
| Makemson, W. K. and Kate, House |
| Manautou House |
| M and J Nelson Building |
| Mangham-McIlwain Building |
| Manhattan Heights Historic District |
| Manlove, Bartholomew, House |
| Man, Ralph Sandiford and Julia Boisseau, House |
| Mansbendel, Peter and Clotilde Shipe, House |
| Mansfield House |
| Mansfield Street Archeological Site |
| Marconi Tower at Port Arthur College |
| Maria Boswell Flake Home for Old Women |
| Marie, Frank, House |
| Marine Commercial Historic District |
| Mariscal Mine |
| Markeen Apartments |
| Markward Homestead |
| Marrow Bone Spring Archeological Site |
| Marschner Building |
| Marshall US Post Office |
| Marsh-Smith House |
| Martin Building |
| Martin Hall at Texas College |
| Martin-Lowe House |
| Marvin Methodist Episcopal Church, South |
| Mary Apartments |
| Mary Christian Burleson House |
| Mason-Hughes House |
| Masonic Building |
| Masonic Lodge 570 |
| Masonic Temple |
| Matagorda Cemetery |
| Matchett, Edgar, House |
| Mather-Kirkland House |
| Mathews-Powell House |
| Mathis, T. H., House |
| Matthews-Atwood House |
| Matthews-Templeton House |
| Maverick Building |
| Maverick-Carter House |
| Maverick County Courthouse |
| Mayfair Building |
| Mayfield-Gutsch Estate |
| Mayflower Building |
| May-Hickey House |
| Maynard, Powell C., House |
| Maynard, W. E., House |
| McAllen Ranch |
| McBride Ranch House |
| McCain, Henry Hicks, House |
| McCanless-Williams House |
| McCardell, William Keenan and Nancy Elizabeth, House |
| McCartney House |
| McCarty Site |
| McCauley, Robert H. and Edith Ethel, House |
| McClelland, J. T. and Minnie, House |
| McClendon-Abney Hardware Company |
| McCollum, D. C., House |
| McCormic-Bishop House |
| McCulloch House |
| McDaniel, George W. and Lavina, House |
| McDermott Motors Building |
| McDonald Hall |
| McDonald House |
| McDougal-Jones House |
| McFaddin House Complex |
Data from United States Park Service and Wikidata
