New York - Role: Building
| Owl's Nest |
| O & W Railroad Station at Port Ben |
| Oyster Bay Long Island Rail Road Station |
| Packard Motor Car Showroom and Storage Facility |
| Paddock Arcade |
| Paddock Building |
| Paddock Mansion |
| PAD Factory, The |
| Pagan-Fletcher House |
| Page House |
| Paine, Thomas, Cottage |
| Palace Theatre |
| Palatine Bridge Freight House |
| Palatine Church |
| Palatine German Frame House |
| Palen, Frank A., House |
| Pangburn, Stephen, House |
| Paramount Theatre |
| Park and Tilford Building |
| Park Avenue Houses |
| Park Church |
| Parke Apartments |
| Park East Synagogue, Congregation Zichron Ephraim |
| Parker 13-Sided Barn |
| Parker, Alton B., Estate |
| Parker, Charles, House |
| Parker, Charlie, Residence |
| Parker Farmhouse |
| Parker Training Academy Dutch Barn |
| Park Mart |
| Park Plaza Apartments |
| Park Row Building |
| Parks-Bentley House |
| Parks, George H., House |
| Parkway Theatre |
| Parmeter, Nathaniel, House |
| Parrott Hall |
| Parry House |
| Parry, John E., House |
| Parsonage Road Historic District |
| Parsonage, The |
| Parsons, Ambrose, House |
| Partridge Cottage |
| Partridge-Sheldon House |
| Patchett House |
| Patroon Agent's House and Office |
| Patten, Jacob H., House |
| Patterson Farmhouse |
| "Patton, James ""Squire,"" House" |
| Pawling Hall |
| Payjack Chevrolet Building |
| Payne Avenue High School |
| Payne Cobblestone House |
| Payne, Col. Oliver Hazard, Estate |
| Payne, William A., House |
| Peabody, Royal C., Estate |
| Peachcroft |
| Pearl Street Schoolhouse |
| Pease, Daniel and Miriam, House |
| Peck, Henry M., House |
| Peck House |
| Peck, J. Franklin, House |
| Peck Memorial Library |
| Peck, Thomas, Farmhouse |
| Peck, Waltrous, House |
| Peekskill Freight Depot |
| Peekskill Presbyterian Church |
| Pelhamdale |
| Pelham Picture House |
| Pelton, Gideon, Farm |
| Pelton Mill |
| Pennsylvania Railroad Station |
| Pentacostal Holy Temple Church of Jesus Christ |
| People's African Methodist Episcopal Zion Church |
| Peoples National Bank and Trust Company Building |
| Perry, Ezikial, House |
| Perry, Jacob P., House |
| Perry, Stuart and William Swezey Houses |
| Perry Village Hall |
| Peru Community Church |
| Peterboro Land Office |
| Peterboro Street Elementary School |
| Petersburgh United Methodist Church |
| Peugnet, Captain Louis, House |
| Peyser and Morrison Shirt Company Building |
| Pfeiffer-Wheeler American Chestnut Cabin |
| Phelps, Ezra T., Farm Complex |
| Phelps Mansion |
| Phelps, Stephen, House |
| Phelps Town Hall |
| Philipsburgh Building |
| Philipsburg Manor |
| Philipse Manor Hall |
| Philipse Manor Railroad Station |
| Phillips, Harriet, Bungalow |
| Phillips House |
| Phillips-Manning House |
| Philosophy Hall |
| Phoenicia Railroad Station |
| Phoenix Building |
Data from United States Park Service and Wikidata
