Texas - Criteria: C (architecture/engineering)
| Littlefield House |
| Little House |
| Live Oak County Jail |
| Livingston-Hess House |
| Llano Cemetery Historic District |
| Llano County Courthouse and Jail |
| Llano County Courthouse Historic District |
| Lockett, M. B. and Annie, House |
| Locust Grove |
| Logue House |
| Los Nogales |
| Los Ojuelos |
| Lost Bayou Historic District |
| Lott, Howard L. and Vivian W.,House |
| Louisiana-Rio Grande Canal Company Irrigation System |
| Love, Frank and Mellie, House |
| Lower Elgin Road Bridge at Wilbarger Creek |
| Lowry, Fayette C., House |
| Lubbock County Jail |
| Lubbock High School |
| Lubbock Post Office and Federal Building |
| Lucas, Joseph and Annie, House |
| Luce Hall |
| Luckett, H. P., House |
| Lufkin Land-Long Bell-Buck House |
| Lumpkin Building |
| Luna Jacal |
| Lund House |
| Lutcher Memorial Church Building |
| Luther Hotel |
| Lynch-Probst House |
| Lynn County Courthouse |
| Lyons, Frederick and Sallie, House |
| 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 and Military Plazas Historic District |
| Main Building, Southwest Texas Normal School |
| Main Street Historic District |
| Main Street/Market Square Historic District |
| Majestic Theatre |
| Majestic Theatre |
| Makemson, W. K. and Kate, House |
| Manautou House |
| M and J Nelson Building |
| Manhattan Heights Historic District |
| Manlove, Bartholomew, House |
| Mann, John Wesley, House |
| Mansbendel, Peter and Clotilde Shipe, House |
| Mansfield House |
| Marie, Frank, House |
| Marine Commercial Historic District |
| Markeen Apartments |
| Markward Homestead |
| Marschner Building |
| Marshall US Post Office |
| Marsh-Smith House |
| Martin Building |
| Martin-Fiek-Thumford, Vera, House |
| Martin-Lowe House |
| Marvin Methodist Episcopal Church, South |
| Mary Allen Seminary for Colored Girls, Administration Building |
| Mary Apartments |
| Mason-Hughes House |
| Masonic Building |
| Masonic Lodge 570 |
| Masonic Temple |
| Masonic Widows and Orphans Home Historic District |
| Matagorda County Monument |
| Matagorda Island Lighthouse |
| 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 |
| Maxey, Samuel Bell, House |
| Mayfield Dugout |
| Mayfield-Gutsch Estate |
| Mayflower Building |
| May-Hickey House |
| Maynard, Powell C., House |
| Maynard, W. E., House |
| McAllen Ranch |
| McCabe Building |
| McCain, Henry Hicks, House |
| McCanless-Williams House |
| McCan-Nave House |
| McCardell, William Keenan and Nancy Elizabeth, House |
| McCartney House |
Data from United States Park Service and Wikidata
