Florida - Criteria: A (event)
| North Shore Historic District |
| North Shore Historic District |
| Northwest Historic District |
| North Woodlawn Cemetery |
| Northwood, Old, Historic District |
| Norton, Robert Lee, House |
| Nyberg-Swanson House |
| Oak Hill Cemetery |
| Oakland Park Elementary School |
| Oates Building |
| Ocala Historic Commercial District |
| Ocala Historic District |
| Ocala Union Station |
| Ocean Spray Hotel |
| Ocoee Christian Church |
| Okeechobee Battlefield |
| Old A.C.L. Union Depot |
| Old Belleair Town Hall |
| Old Bradford County Courthouse |
| Old Christ Church |
| Old Collier County Courthouse |
| Old Fernald-Laughton Memorial Hospital |
| Old Gainesville Depot |
| Old Hamilton County Jail |
| Old Haulover Canal |
| Old Live Oak City Hall |
| Old Lucerne Historic Residential District |
| Old Orlando Railroad Depot |
| Old Ortega Historic District |
| Old Palm Beach Junior College Building |
| Old Palmetto Hotel |
| Old People's Home |
| Old Philadelphia Presbyterian Church |
| Old School House |
| Olds Hall |
| Old St. Johns County Jail |
| Old St. Luke's Hospital |
| Old Tampa Children's Home |
| Old Town Sebastian Historic District East |
| Old Town Sebastian Historic District, West |
| Old US Post Office and Courthouse |
| O'Leno State Park |
| Ollinger-Cobb House |
| Olustee Battlefield |
| Olympia School |
| Olympia Theater and Office Building |
| Opa-locka Bank |
| Operation Crossbow Site |
| Operations and Checkout Building |
| Orange City Colored School |
| Orange City Historic District |
| Orange City Town Hall |
| Orange Park Elementary School |
| Orange Park Negro Elementary School |
| Orange Springs Methodist Episcopal Church and Cemetery |
| O'Reilly House |
| Original Town of Fernandina Historic Site |
| Orlando Utilities Commission Administration Building |
| Ormond Fire House |
| Ormond Yacht Club |
| Osborne School |
| Osceola County Courthouse |
| Osceola Park Historic Residential District |
| Osprey School |
| Out of Door School |
| Overtown Historic District |
| Pahokee High School |
| Palafox Historic District |
| Palatka North Historic District |
| Palatka South Historic District |
| Palm Beach Daily News Building |
| Palm Beach Hotel |
| Palm Beach Mercantile Company |
| Palm Beach Town Hall |
| Palm Cottage |
| Palm Cottage |
| Palm Cottage Gardens |
| Palmer, Cal, Memorial Building |
| Palmetto Armory |
| Palmetto Beach Historic District |
| Palmetto Historic District |
| Pan American Seaplane Base and Terminal Building |
| Paramount Theatre Building |
| Park Avenue Historic District |
| Parrot Jungle Historic District |
| Pasco County Courthouse |
| Pass-a-Grille Historic District |
| Payne's Creek Massacre-Fort Chokonikla Site |
| Peabody Hall |
| Pelican Island National Wildlife Refuge |
| Pender's Store |
| Pendleton, William Kimbrough, House |
| Pensacola Historic District |
| Pensacola Hospital |
| Pensacola Lighthouse and Keeper's Quarters |
| Pensacola Naval Air Station Historic District |
| Perdido Key Historic District |
| Perkins Opera House |
| Perry Post Office, Old |
| Pierce, Thomas R., House |
Data from United States Park Service and Wikidata
