Florida - Area of significance: Architecture
| Micanopy Historic District |
| Miccosukee Methodist Church |
| Michigan Avenue Bridge |
| Middleburg Historic District |
| Milam, Arthur, House |
| Millard-McCarty House |
| Miller, George McA., House |
| Milton Historic District |
| Milton-Myers American Legion Post No. 65 |
| Mittendorf House |
| Model Land Company Historic District |
| Monticello High School |
| Monticello Historic District |
| Monticello Hotel |
| Moore Haven Downtown Historic District |
| Moore Haven Residential Historic District |
| Morgan-Townsend House |
| Morocco Temple |
| Moseley Homestead |
| Moss Hill Church |
| Mote-Morris House |
| Motor Inn Number 2 |
| Moulton-Wells House |
| Moultrie Church |
| Mound House |
| Mountain Lake Colony House |
| Mountain Lake Estates Historic District |
| Mount Beasor Primitive Baptist Church |
| Mount Dora Historic District |
| Mount Olive African Methodist Episcopal Church |
| Mount Zion AME Church |
| Mount Zion Baptist Church |
| Mt. Calvary Baptist Church |
| Mt. Pilgrim African Baptist Church |
| Municipal Auditorium-Recreation Club |
| Munn Park Historic District |
| Munroe, Ralph M., House |
| Murphy-Burroughs House |
| Naples Historic District |
| Nassau County Jail |
| Neilson House |
| Nelmar Terrace Historic District |
| Nelson and Company Historic District |
| Newberry Historic District |
| Newell Hall |
| New River Inn |
| New Smyrna Beach Historic District |
| New Smyrna Sugar Mill Ruins |
| Newtown Historic District |
| Nielsen, Lucienne, House |
| Nils M. and Beverly Schweizer House |
| N.K. SYMI (Sponge Diving Boat) |
| Nokomis Beach Pavilion |
| Normandy Isles Historic District |
| North Avenue Historic District |
| North Beach Bandshell |
| Northboro Park Historic District |
| North City Historic District |
| Northeast Bartow Residential District |
| Northeast Gainesville Residential District |
| North Franklin Street Historic District |
| North Hill Preservation District |
| North Plant City Residential District |
| North Shore Historic District |
| North Shore Historic District |
| North Ward School |
| Northwood, Old, Historic District |
| Norton, Gould Hyde, House |
| Norton, Robert Lee, House |
| Nyberg-Swanson House |
| Oakland Park Elementary School |
| Oaklawn and St. Louis Cemeteries Historic District |
| Oates Building |
| Ocala Historic Commercial District |
| Ocala Historic District |
| Ocala Union Station |
| Ocean Spray Hotel |
| Ocoee Christian Church |
| Okahumpka Rosenwald School |
| Old Baker County Courthouse |
| Old Calhoun County Courthouse |
| Old Christ Church |
| Old Gainesville Depot |
| Old Hamilton County Jail |
| Old Holy Redeemer Catholic Church |
| Old Howard Academy |
| Old Jacksonville Free Public Library |
| Old Live Oak City Hall |
| Old Lucerne Historic Residential District |
| Old Mount Carmel Baptist Church |
| Old Orlando Railroad Depot |
| Old Ortega Historic District |
| Old Palm Beach Junior College Building |
| Old People's Home |
| Old Philadelphia Presbyterian Church |
| Old Post Office and Customshouse |
| Old School House |
| Old School Square Historic District |
| Olds Hall |
| Old Spanish Monastery |
Data from United States Park Service and Wikidata
