All - Architectural style - Renaissance Revival architecture
| Overton Gymnasium |
| Owego Central Historic District |
| Owen-Cox House |
| Owens, James, Farm |
| Oxford Historic District |
| Oxford Hotel |
| Oxon Cove Park |
| Pabst, Frederick and Maria, House |
| Pacific and Idaho Northern Railroad Depot |
| Pacific Building |
| Pacific Gas & Electric Company Building |
| Packard Library |
| Packer, Harry, Mansion |
| Page County Courthouse |
| Palace Lodge |
| Palace Theater |
| Palace Theatre |
| Palais Royale Building |
| Palmer-Lewis Estate |
| Palms, The |
| Paramount Theatre |
| Pardee House |
| Parish House |
| Parke Apartments |
| Parker, Charles, House |
| Parker Masonic Hall |
| Parker Mill Complex |
| Parker-Reynolds House |
| Parkersburg Women's Club |
| Parkesburg School |
| Parks Place |
| Park Square Historic District |
| Parkview Historic District |
| Parkview Historic District |
| Parrott Hall |
| Pasadena Apartments |
| Passaic Elks Club |
| Patee Town Historic District |
| Pawling Hall |
| Peabody Hotel |
| Peachtree Southern Railway Station |
| Peery, E.C., Building |
| Pejepscot Paper Company |
| Pekin Federal Building |
| Pembroke Mill |
| Penn Alto Hotel |
| Pennellville Historic District |
| Penn-Liberty Historic District (Boundary Increase) |
| Pennsylvania Academy of the Fine Arts |
| Penn-Wyatt House |
| Perdue, C. A., House |
| Perry Estate-St. Mary's Academy |
| Perry, Ezikial, House |
| Perth Amboy Station |
| Petersburg City Hall |
| Petersburg Historic District |
| Peterson and Mustard's Hermitage Farm |
| Petitfils-Boos House |
| Philippi Historic District |
| Phillips, E. M., House |
| Philosophy Hall |
| Phipps-McElveen Building |
| Phlegar Building |
| Phoenixville Historic District |
| Pickens Hall |
| Pierce School No. 13 |
| Pinecrest |
| Pines, The |
| Pioneer Building |
| Pioneer State Bank No. 36 |
| Piper-Beebe House |
| Pitman Grove |
| Pittsburgh Athletic Association Building |
| Pittsfield Railroad Station |
| Pittsylvania County Courthouse |
| Plainfield Station |
| Plattenburg, Wesley, House |
| Plaza |
| Plaza Hotel |
| Plaza Hotel |
| Pleasant Hill Church |
| Pleasant Valley Wine Company |
| Poche', Judge Felix, Plantation House |
| Point Pleasant Historic District |
| Polk Hotel |
| Polk Theatre and Office Building |
| Pollock, John C., House |
| Poole, Nathan Dickerson, House |
| Porteous, Mitchell and Braun Company Building |
| Porter County Jail and Sheriff's House |
| Portland Cordage Company Building |
| Portland Fire Station No. 23 |
| Port Sanilac Masonic and Town Hall |
| Post and King Saloon |
| Post Hill Historic District |
| Potter-O'Brian House |
| Poughkeepsie Almshouse and City Infirmary |
| Poulet House |
| Powell-Redmond House |
| Prague Hotel |
Data from United States Park Service and Wikidata
