Massachusetts - Criteria: C (architecture/engineering)
| Pill Hill Historic District |
| Pillsbury-French House |
| Pillsbury Summer House |
| Pine Grove Cemetery |
| Pine Grove Cemetery |
| Pine Grove Cemetery |
| Pine Ridge Road-Plainfield Street Historic District |
| Pine Street School |
| Pine Street School |
| Pinewoods Camp |
| Pinkham House |
| Pinkham, Lydia, House |
| Pinkham, Richard, House |
| Pittsfield Cemetery |
| Pittsfield & North Adams Passenger Station and Baggage & Express House |
| Plainfield Center Historic District |
| Platts-Bradstreet House |
| Pleasant-High Historic District |
| Pleasant-School Street Historic District |
| Pleasant Street Congregational Church |
| Pleasant Street Firehouse |
| Pleasant Street Historic District |
| Pleasant Street Historic District |
| Pleasant Street School |
| Pleasant Street School |
| Plimpton, Simon, Farmhouse |
| Plimpton-Winter House |
| Plummer Memorial Library |
| Plymouth Antiquarian House |
| Plymouth Post Office Building |
| Plymouth Rock |
| Plymouth Village Historic District |
| Plympton Village Historic District |
| Pocasset Firehouse No. 7 |
| Point Neighborhood Historic District |
| Poli's Palace Theater |
| Pomeroy Terrace Historic District |
| Ponakin Bridge |
| Pond Hill School |
| Pond Street School |
| Pondville Cemetery |
| Poor House and Methodist Cemetery |
| Porcellian Club |
| Porter-Phelps-Huntington House |
| PORTLAND (Shipwreck and Remains) |
| Port Royal House |
| Potter Estate |
| Potter-O'Brian House |
| Powder House Park |
| Power, Charles Whittlesey, House |
| Powers Institute Historic District |
| Pratt, Capt. Josiah, House |
| Pratt, Dexter, House |
| Pratt-Faxon House |
| Pratt Historic Building |
| Pratt House |
| Pratt, Miles, House |
| Pratt, Stillman, House |
| Prentiss, Addison, House |
| Prentiss-Payson House |
| Prentiss, William, House |
| Prescott Estate |
| Prescott, Gustavus G., House |
| Prescott Town House |
| Pressey-Eustis House |
| Primrose Street Schoolhouse |
| Proctor, John, House |
| Proctor, John, House |
| Proctor, William, House |
| Prospect Congregational Church |
| Prospect-Gaylord Historic District |
| Prospect Heights Historic District |
| Prospect Hill Cemetery |
| Prospect Hill School |
| Prospect House |
| Prospect Park |
| Providence Court |
| Providence Street Firehouse |
| Providence Street Historic District |
| Provincetown Historic District |
| Provincetown Public Library |
| Provost, Arthur, Three-Decker |
| Publicity Building |
| Punchard, Benjamin House |
| Purchase-Ferre House |
| Puritan House |
| Putnam, Deacon Edward, Jr., House |
| Putnam, Gen. Israel, House |
| Putnam, James, Jr., House |
| Putnam, Otis, House |
| Putnam, Rev. Daniel, House |
| Putnam Street Historic District |
| Qheguechan Club |
| Quaker Meetinghouse |
| Queguechan Valley Mills Historic District |
| Quincy Grammar School |
| Quincy Granite Railway |
| Quincy Homestead |
| Quincy, Josiah, House |
| Quincy Market |
Data from United States Park Service and Wikidata
