Texas - Criteria: A (event)
| Lee, Robert E., Hotel |
| Leesville Schoolhouse |
| Leon Street Bridge at the Leon River |
| Lerma's Nite Club |
| Leuda-May Historic District |
| Levy, E.S., Building |
| Lewis, Ella, Store and Rental Houses |
| Liberty County Courthouse |
| Liberty Square Apartments |
| Liberty Village Apartments |
| Limerick-Frazier House |
| Linberg, Eric and Martha, Farm |
| Lincoln High School |
| Lincoln Paint and Color Company Building |
| Lindsay, Oscar, House |
| Link-Lee House |
| Lions Municipal Golf Course |
| Lipscomb County Courthouse |
| Little Campus |
| Littlefield House |
| Live Oak County Jail |
| Llano Cemetery Historic District |
| Llano County Courthouse and Jail |
| Llano County Courthouse Historic District |
| Lockhart Vocational High School |
| Lomita Boulevard Commercial Historic District |
| Lone Wolf Crossing Bridge |
| Lott-Canada School |
| Louisiana-Rio Grande Canal Company Irrigation System |
| Loving County Courthouse |
| Lower Elgin Road Bridge at Wilbarger Creek |
| Lower South Grape Creek School |
| Lubbock County Jail |
| Lubbock High School |
| Lubbock Post Office and Federal Building |
| Lucas Gusher, Spindletop Oil Field |
| Luckenbach School |
| Lumpkin Building |
| Luna Jacal |
| Lung House |
| Luther Hotel |
| Lyndon B. Johnson National Historical Park |
| Lynn County Courthouse |
| Macedonia Baptist Church |
| Mackey, William, House |
| Magnolia Building |
| Magnolia Petroleum Company City Sales and Warehouse |
| Magnolias, The |
| Magoffin Historic District |
| Main and Military Plazas Historic District |
| Main Building, Blinn College |
| Main Building, Southwest Texas Normal School |
| Main Street Historic District |
| Main Street/Market Square Historic District |
| Majestic Theatre |
| Makemson, W. K. and Kate, House |
| M and J Nelson Building |
| Mangham-McIlwain Building |
| Man, Ralph Sandiford and Julia Boisseau, House |
| Marconi Tower at Port Arthur College |
| Maria Boswell Flake Home for Old Women |
| Marine Commercial Historic District |
| Mariscal Mine |
| Marshall US Post Office |
| Martin Hall at Texas College |
| Marvin Methodist Episcopal Church, South |
| Mary Allen Seminary for Colored Girls, Administration Building |
| Masonic Temple |
| Masonic Widows and Orphans Home Historic District |
| Matagorda Cemetery |
| Matagorda County Monument |
| Matagorda Island Lighthouse |
| Mather-Kirkland House |
| Maverick Building |
| Maverick County Courthouse |
| McAllen Ranch |
| McBride Ranch House |
| McCardell, William Keenan and Nancy Elizabeth, House |
| McClennan County Courthouse |
| McDermott Motors Building |
| McDonald Hall |
| McFarlin Memorial Auditorium |
| McGaugh Hosiery Mills - Airmaid Mills Building |
| McGloin, James, Homestead |
| McIntosh, Roger D., House |
| McKinney Cotton Compress Plant |
| McKinney Cotton Mill Historic District |
| McKinney Hospital, Old |
| McKittrick Canyon Archeological District, Guadalupe Mountains National Park |
| McLean Commercial Historic District |
| McMillen Apartments |
| McMurry College Administration Building |
| McNeil, Harriet and Charlie, House |
| McWilliams Building |
| Medical Dental Building |
| Medina Dam |
| Menard County Courthouse |
| Menger Soap Works |
| Merchants and Manufacturers Building |
| Merchants Ice and Cold Storage Company |
Data from United States Park Service and Wikidata
