Mississippi - Area of significance: Architecture
| Krebs, James, House |
| Krebsville Historic District |
| Kyle, John Curtis, House |
| Kyle, Judge John William, Law Office |
| Labauve, Felix, House |
| Lacy Homestead |
| Lafayette County Courthouse |
| Lake Railroad Station |
| Lamar Elementary School |
| Lamar Hotel |
| Lameuse Street Historic District |
| Lampkin-Owens House |
| Lampton-Thompson-Bourne House |
| Lane, John, House |
| Lanier House |
| Lanier Junior-Senior High School (Colored) |
| Lansdowne |
| Laurel Central Historic District |
| Laurel Hill Plantation |
| Laurietta |
| Lawrence County Courthouse |
| Lea, Hampton, House |
| Leavenworth-Wasson-Carroll House |
| Lea, Wilford Zachariah, House |
| Lebanon Presbyterian Church |
| Lee County Courthouse |
| Lee-Dubard House |
| Lee House |
| Lee-Mitts House |
| Lee, S.D., High School |
| Lee, S. D., House |
| Legion State Park |
| Leland Historic District |
| Lenoir Plantation House |
| Levin, Leonard, House |
| Lewis, A. J., House |
| Lewis, Col. Alfred E., House |
| Lewis, Ervin, House |
| Lexington Historic District |
| Liberty Hall |
| Liberty Presbyterian Church |
| Lindamood Building of Palmer Home for Children |
| Linden |
| Linden |
| Lisle-Shields Town House |
| Little, Dr. William, House |
| Lochinvar |
| Long Moss Plantation House |
| Longwood |
| Lorena Duling School |
| Louisville and Nashville Railroad Depot at Ocean Springs |
| Lover's Lane Historic District |
| Lucas, John Copeland, House |
| Luckett Compound |
| Macon Historic District |
| Madison County Jail |
| Madison-Ridgeland Public School |
| Magnolia Hill |
| Magnolia Hotel |
| Magnolia Manor |
| Magnolias, The |
| Magnolia Vale |
| Magruder-Morrissey House |
| Magruder-Newsom House |
| Main Street Historic District |
| Main Street Historic District |
| Manse, The |
| Manship House |
| Marble Springs Historic District |
| Marclare |
| Margin St. Historic District |
| Marion County Courthouse and Jail |
| Market Street-Suburb Ste. Mary Historic District |
| Masonic Hall, Old |
| Mason, William H. and Marian D., House |
| Maudwin |
| McComb Downtown Historic District |
| McCoy Administration Building |
| McCrory-Deas-Buckley House |
| McDermott House |
| McElroy-Hoye House |
| McGeehee-Ames House |
| McGehee House |
| McGehee Plantation |
| McGehee, Theodore L., Plantation House |
| McGregor |
| McLaran, Charles, House |
| McNair, Dr., House |
| McNair Plantation |
| McNeill-McGee House |
| McRae's Department Store at Meadowbrook Mart |
| Meador Homestead |
| Meadow Woods Plantation House |
| Meadvilla |
| Melrose |
| Mercer House |
| Merchants and Farmers Bank Building |
| Meridian Downtown Historic District |
| Meridian Senior High School and Junior College |
| Meridian Urban Center Historic District |
Data from United States Park Service and Wikidata