Massachusetts - Criteria: C (architecture/engineering)
| Smith, Ellen M., Three-Decker |
| Smith, Elliot, House |
| Smith, F.W., Silver Company |
| Smith, Hazadiah, House |
| Smith House |
| Smith, James, House |
| Smith, John Mace, House |
| Smith-Lyon Farmhouse |
| Smith, Marshall, House |
| Smith, Matthias, House |
| Smith, Perez, House |
| Smith-Peterson House |
| Smith, Samuel, Tavern Site |
| Smith's Building |
| Smith Shoe Shop |
| Smith-Thaxter-Merrifield House |
| Smith, Thomas and Esther, House |
| Smuggler's House |
| Snow Fountain and Clock |
| Snow, Lemuel, Jr., House |
| Society of the Congregational Church of Great Barrington |
| Soho Cottage |
| Soldiers and Sailors Memorial Building |
| Soldiers' Memorial Library |
| Somerville High School |
| Somerville Journal Building |
| Somerville Theatre |
| Soule, Lawrence, House |
| South Amherst Common Historic District |
| Southampton Center Historic District |
| South Boston Boat Clubs Historic District |
| Southbridge-Sargent Manufacturing District |
| Southbridge Town Hall |
| South Burying Ground |
| South Center School House |
| South Common Historic District |
| South Congregational Church |
| South Egremont Village Historic District |
| Souther, John, House |
| South Green Historic District |
| South Hadley Canal Historic District |
| South Harwich Methodist Church |
| South Hingham Historic District |
| South Junior High School |
| South Lee Historic District |
| South Main Street School |
| South Middleborough Historic District |
| South Reading Academy |
| South School |
| South School |
| South Station Headhouse |
| South Street Historic District |
| South Swansea Union Church |
| South Union School |
| South Unitarian |
| South Washington Street Historic District |
| Southwick-Daniels Farm |
| Southwick, Elisha, House |
| Southwick House |
| Southwick, Israel, House |
| South Worcester Branch Library |
| South Worthington Historic District |
| South Yarmouth/Bass River Historic District |
| Sparrow, Richard, House |
| Spaulding Block |
| Spaulding, Zeb, House |
| Spear, Seth, Homestead |
| Spencer-Pierce-Little House |
| Spicket Falls Historic District |
| Spofford-Barnes House |
| Sprague House |
| Spring Brook Cemetery |
| Springfield District Court |
| Springfield Fire & Marine Insurance Co. |
| Springfield Safe Deposit and Trust Company |
| Springfield Steam Power Company Block |
| Springfield Street Historic District |
| Spring Hill Cemetery |
| Spring Hill Historic District |
| Spring Hill Historic District |
| Springside Park |
| Spurr, Eliphalet, House |
| Spurr, John, House |
| Stacy Building |
| Stacy, George O., House |
| Stafford Mills |
| Standish, James H., House |
| Stanley, Leonard W., House |
| St. Anne's Church and Parish Complex |
| Stanstead, The |
| Stanton, Jacob, House |
| Staples, Sylvanus N., House |
| Stark Building |
| Stark, Edward, House |
| Stark, Robert M., House |
| State Armory |
| State Lunatic Hospital at Danvers |
| State Normal Training School |
| St. Charles Borromeo Church |
| Stearns, Amos, House |
Data from United States Park Service and Wikidata
