Arkansas - Area of significance: Architecture
| Lamb-McSwain House |
| Lancaster, Albert and Almeda, House |
| Lancaster, Fred, Barn |
| Land's End Plantation |
| Lane Hotel |
| Langdon Filling Station |
| Langley, Farris and Evelyn, House |
| Laporte, William, Building |
| Larned, Capt., House |
| Lasater, Freeborn T., House |
| Lasley's College Apartments |
| Lattimer House |
| Lawrence A. Davis, Sr., Student Union |
| Lawrence County Courthouse |
| Lawrie House |
| Laws-Jarvis House |
| Lay, S. A., House |
| Layton Building |
| Lea, Harvey, House |
| Leake-Ingham Building |
| Lee, Carl and Esther, House |
| Lee County Courthouse |
| Lee, R. E., House |
| Lee, Robert E., School |
| Lee's Chapel Church and Masonic Hall |
| Lee Service Station |
| Leggett House |
| Leiper-Scott House |
| Leslie Commercial Historic District |
| Leslie-Rolen House |
| Letona Hotel |
| Lewis Brothers Building |
| Lewis, Jay, House |
| Liberty Schoolhouse |
| Lick Skillet Railroad Work Station Historic District |
| Lightle, Ben, House |
| Lightle House |
| Lightle House |
| Lightle, William H., House |
| Lillard-Sprague House |
| Lincoln Building |
| Lincoln County Courthouse |
| Linebarger House |
| Linwood Mausoleum |
| Little, J.E., House |
| Little, Jim, House |
| Little River County Courthouse |
| Little Rock Boys Club |
| Little Rock Central Fire Station |
| Little Rock City Hall |
| Little Rock Fire Station No. 9 |
| Little Rock US Post Office and Courthouse |
| Little Rock Y.M.C.A. |
| Little Springs Missionary Baptist Church |
| Livestock and Equipment Barn, Glenn Homestead |
| Lloyd England Hall |
| Locke, Esther, House |
| Lockesburg High School Gymnasium |
| Logan County Courthouse, Eastern District |
| Logan County Courthouse, Southern Judicial District |
| Logan County Jail, Old |
| Lone Star Baptist Church |
| Lone Star School |
| Longino, Dr. H. A., House |
| Long, Web, House and Motel |
| Lonoke County Courthouse |
| Lonoke Downtown Historic District |
| Looney- French House |
| Lovell, Dr., House |
| Luna, Anthony, House |
| Luster Urban Farmstead |
| Luxor Apartments |
| Lyell, Van, House |
| Lynch, Thomas, House |
| Mabry, H. S., Barn |
| MacArthur Park Historic District |
| MacMillan-Dilley House |
| Macon-Harrison House |
| Maddox, E. D., Farm Chicken House |
| Madison County Courthouse |
| Magazine City Hall-Jail |
| Magnolia Commercial Historic District |
| Magnolia Company Filling Station |
| Magnolia Manor |
| Magnolia Petroleum Company Filling Station |
| Magnolia Service Station |
| Maguire-Williams House |
| Mahony Historic District |
| Main Building, Arkansas Baptist College |
| Main Street Commercial District |
| Malco Theatre |
| Mallett, George W., House |
| Maness Schoolhouse |
| Mann, George R., Building |
| Mann House |
| Manning, Lee and Moore Law Office |
| Maple Hill Cemetery |
| Marathon Oil Service Station |
| Marcella Church & School |
| Marianna Commercial Historic District |
Data from United States Park Service and Wikidata
