Arizona - Significance region: Local
| Lehi School |
| Lehmberg, Dr. H. B., House |
| Lewis and Pranty Creek Bridge |
| Liberty Methodist Episcopal Church, South |
| Lincoln Hospital |
| Lithodendron Wash Bridge |
| Littlefield, Inez and Davis, Bea, House |
| Little Hell Canyon Bridge |
| Little Lithodendron Wash Bridge |
| Little Mountain Lookout Tree |
| Little Outfit Schoolhouse, The |
| Little Red School |
| Livingston, Dr. David S., House |
| Lonely Dell Ranch Historic District |
| Long, Samuel C., House |
| Lorona, Andronico, Second House |
| Los Burros Ranger Station |
| Los Olivos Historic District |
| Lovin and Withers Cottages |
| Lovin & Withers Investment House |
| Luhrs Building |
| Lynx Creek Bridge |
| MacLennan House |
| Magma Hotel |
| Mahoney, W. P., House |
| Main Building, Tempe Normal School |
| Mandell and Meyer Building |
| Manistee Ranch |
| Manjarres House |
| Manning Cabin |
| Margarita Place Historic District |
| Marks House |
| Martinez, W. D., General Merchadise Store |
| Martin/Ling House |
| Masonic Hall |
| Masonic Temple |
| Masonic Temple |
| Master Mechanic's House |
| Matthews Hall |
| Matus, Antonio, House and Property |
| Mayer Apartments |
| Mayer Business Block |
| Mayer Red Brick Schoolhouse |
| McCornack, Colonel Willard H., House |
| McCullough-Price House |
| McFadden, Phillip G. House |
| McGee, James and Mary, House |
| McNair, Jonas, House |
| Medlock Place Historic District |
| Meehan/Gaar House |
| Mee, Joe, House |
| Menlo Park Historic District |
| Mesa Journal-Tribune FHA Demonstration Home |
| Mesa Woman's Club |
| Miami Avenue Bridge |
| Miami Community Church |
| Midgley, W. W., Bridge |
| Mile High Park Historic District |
| Miller, Pryor, House |
| Milligan House |
| Milton Mine |
| Mineral Creek Bridge |
| Miracle Mile Historic District |
| Miracle Mile Historic District |
| Moeur Park |
| Moeur, W. A., House |
| Mohave County Hospital |
| Mohawk Valley School |
| Montezuma Castle National Monument-Back Ranch Historic District-Montezuma Well Unit |
| Morgan, David-Bronson, Earl A., House |
| Morgan House |
| Morin House |
| Mormon Church |
| Mormon Flat Bridge |
| Morrison House |
| Morristown Store |
| Morrow-Hudson House |
| Mullen, C. P., House |
| Mulvenon Building |
| Municipal Light Plant |
| Museum of Northern Arizona Exhibition Building |
| Myrtle Avenue Residential Historic District |
| Negrette House |
| Nohlechek, Rhoda, House |
| North Central Avenue Streetscape Historic District |
| North Encanto Historic District |
| North End Historic Residential District |
| Northern Avenue Petroglyph Site |
| Northfield Historic District |
| North Garfield Historic District |
| North Prescott Townsite Historic District |
| Oakland Historic District |
| Oakland Historic District |
| Oasis Court |
| Oatman Drug Company Building |
| O'Brien, Mathew, House |
| Oddfellows Home |
| OK Ranch Historic District |
| Old Adobe Patio |
| Old Barber Shop |
Data from United States Park Service and Wikidata
