Massachusetts - Criteria: C (architecture/engineering)
| Rocky Neck Historic District |
| Roebuck Tavern |
| Rogers-Downing House |
| Rogers Fort Hill Park Historic District |
| Rogers House |
| Rogerson's Village Historic District |
| Rollins, John R., School |
| Ronan, Mary, T., School |
| Rosebud, The |
| Rose, John and Ruth, House |
| ROSEWAY (schooner) |
| Roslindale Baptist Church |
| Roslindale Congregational Church |
| Roslindale Substation |
| Ross Farm |
| Ross Tavern |
| Rotch, William J., Gothic Cottage |
| Rotch, William Jr., House |
| Roughan Hall |
| Roughwood |
| Round House |
| Rowell House |
| Rowhouses at 256-274 Haven Street |
| Rowley Village Forge Site |
| Roxbury High Fort |
| Roxbury Highlands Historic District |
| Roxbury Presbyterian Church |
| Royall, Isaac, House |
| Royalston Common Historic District |
| Roynane, Catharine, Three-Decker |
| Ruggles, Draper, House |
| Ruggles Park |
| Rumney Marsh Burying Ground |
| Rural Cemetery and Friends Cemetery |
| Russell, Arthur H., House |
| Russell Center Historic District |
| Russell, Charles, House |
| Russell Common |
| Russell Corner Historic District |
| Russell Garrison |
| Russell House |
| Russell, Jason House |
| Russell, Philemon, House |
| Russells Mills Village Historic District |
| Russell, Susan, House |
| Russell, The |
| Russian Cemetery |
| Russia Wharf Buildings |
| Rust, Nathaniel, Mansion |
| Sacco-Pettee Machine Shops |
| Sachem Rock Farm |
| Saco-Lowell Shops Housing Historic District |
| Sacred Heart Church Historic District |
| Sacred Heart Church, Rectory, School and Convent |
| Sacred Heart Parish Complex |
| Sacred Heart School |
| Sadler, Herbert A., House |
| Safety Fund National Bank |
| Sagamore Mill No. 2 |
| Sagamore Mills No. 1 and No. 3 |
| Sage, Philemon, House |
| Saint Aidan's Church and Rectory |
| Saint Andrew's Chapel |
| Saint Augustine Chapel and Cemetery |
| Saint John's Episcopal Church |
| Saint Joseph's Roman Catholic College for Boys |
| Saint Mark's Episcopal Church |
| Saint Mary of the Assumption Church, Rectory, School and Convent |
| Saint Paul's Church, Chapel, and Parish House |
| Saint Paul's Rectory |
| Salem-Auburn Streets Historic District |
| Salem Diner |
| Salem Landry |
| Salem Lutheran Church |
| Salem Maritime National Historic Site |
| Salem Street Burying Ground |
| Salem Village Historic District |
| Salem Willows Historic District |
| Salisbury House |
| Salisbury, Jonas, House |
| Salisbury, Jonas, House |
| Salisbury Mansion and Store |
| Sampson's Folly-Josiah Sampson House |
| Samuel Brown School |
| Sanborn House |
| Sanborn, Rev. Peter, House |
| Sanderson-Clark Farmhouse |
| Sanderson, John, House |
| Sanderson, Julia, Theater |
| Sanderson, Nathan, I, House |
| Sanderson, Nathan, II, House |
| Sands, Hiram, House |
| Sands, Ivory, House |
| Sandy Neck Cultural Resources District |
| Sandy Pond School |
| Sanford Spinning Co. |
| Sanford Whip Factory |
| Sanger, Asa, House |
| Sanger, Richard, III, House |
| Sankaty Head Light |
Data from United States Park Service and Wikidata