Texas - Area of significance: Architecture
| 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 |
| Mary Christian Burleson House |
| Mason Historic District |
| Mason-Hughes House |
| Masonic Building |
| Masonic Lodge 570 |
| Masonic Temple |
| Masonic Widows and Orphans Home Historic District |
| Matchett, Edgar, House |
| Mather-Kirkland House |
| Mathews-Powell House |
| Mathis, T. H., House |
| Matthews-Atwood House |
| Matthews-Templeton House |
| Maverick-Altgelt Ranch and Fenstermaker-Fromme Farm |
| Maverick Building |
| Maverick-Carter House |
| Maverick County Courthouse |
| Maxey, Samuel Bell, House |
| Mayfield Dugout |
| 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 |
| McCauley, Robert H. and Edith Ethel, House |
| McClelland, J. T. and Minnie, House |
| McClendon-Abney Hardware Company |
| McClennan County Courthouse |
| McCollum, D. C., House |
| McCormic-Bishop House |
| McCroskey, John, Cabin |
| McCulloch County Courthouse |
| McCulloch House |
| McDaniel, George W. and Lavina, House |
| McDermott Motors Building |
| McDonald House |
| McDonald House |
| McDougal-Jones House |
| McFaddin House Complex |
| McFaddin, James, House |
| McFadin House |
| McFarland House |
| McFarlin Memorial Auditorium |
| McGilbert House |
| McGloin, James, Homestead |
| McGown, Floyd, House |
| McKie-Bass Building |
| McKinney Commercial Historic District |
| McKinney Cotton Mill Historic District |
| McKinney Homestead |
| McKinney Hospital, Old |
| McKinney-McDonald House |
| McKinney Residential Historic District |
| McKnight-Ebb House |
| McMurray House |
| McNair House |
| McNamara-O'Conner House |
| McNeil, Marcellus, House |
| McWhirter, George and Martha, House |
| McWilliams Building |
| Means-Justiss House |
| Means, V. R., House |
| Mechanical Laboratory and Power House |
| Medical Dental Building |
| Medical Towers |
| Medina Dam |
| Meek, James V., House |
| Meerscheidt, Otto, House |
| Meissner-Pleasants House |
| Meitzen House |
| Mellinger, Marguerite Meachum & John S., House |
| Melrose Apartment Building |
| Melrose Building |
| Menard County Courthouse |
| Menard, Michel B., House |
| Menger Soap Works |
| Merchants and Manufacturers Building |
| Meredith-McDowal House |
| Merimax Building |
| Merrell, Capt. Nelson, House |
| Merrell-Roten House |
| Mesa Pump Plant |
| Methodist Church Concord |
| Methodist Church of Richmond |
| Michaelis, M.G., Ranch |
Data from United States Park Service and Wikidata
