Massachusetts - Criteria: A (event)
| Red Brick School |
| Redman Farm House |
| Reed and Barton Complex |
| Reed, Frank, Three-Decker |
| Reed, Timothy, House |
| Reed-Wood Place |
| Reeves Tavern |
| Refreshment Pavillion |
| Rehoboth Village Historic District |
| Renfrew Mill No. 2 |
| Republican Block |
| Reservoir Park |
| Revere Beach Parkway-Metropolitan Park System of Greater Boston |
| Revere Beach Reservation |
| Revere City Hall and Police Station |
| Reversible Collar Company Building |
| Rhodes, M.M. and Sons Co. |
| Rice, A.H., Silk Mill |
| Rice, Capt. Peter, House |
| Richards, Alfred H., House |
| Richards, Ellen H. Swallow, House |
| Richardson Block |
| Richardson, John, House |
| Richardson, Zachariah, House |
| Richard, Stephen, House |
| Richmond Furnace Historical and Archeological District |
| Richmond, Willard, Apartment Block |
| Ridgewood Cemetery |
| Ridyard, Albert, Three-Decker |
| Ridyard, B. E., Three-Decker |
| Riley, Charles, House |
| Ringville Cemetery |
| Riordan, John, Three-Decker |
| Rising Paper Mill |
| Ritchie Building |
| River Road-Cross Street Historic District |
| Riverside Archeological District |
| Riverside Village Historic District |
| Riviera, The |
| Rivulet Mill Complex |
| Robbins, John, House |
| Robbins, Joseph, House |
| Robbins, Royal E., School |
| Roberts School |
| Robin Hill Cemetery |
| Robinson House |
| Rock Castle School |
| Rockdale Common Housing District |
| Rockland Almshouse |
| Rockland High School |
| Rockland Memorial Library |
| Rockland Trust Company |
| Rocklawn Cemetery |
| Rockport Downtown Main Street Historic District |
| Rockport High School |
| Rockport High School, Old |
| Rock Ridge |
| Rockwood Road Historic District |
| Rocky Hill Meetinghouse and Parsonage |
| Rocky Neck Historic District |
| Roebuck Tavern |
| 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 |
| Rotch, William Jr., House |
| Roughan Hall |
| Roughwood |
| Rowell House |
| Rowley Village Forge Site |
| Roxbury Highlands Historic District |
| Roxbury Presbyterian Church |
| Royalston Common Historic District |
| Roynane, Catharine, Three-Decker |
| Ruggles Park |
| Rumney Marsh Burying Ground |
| Rural Cemetery and Friends Cemetery |
| Russell Center Historic District |
| Russell Common |
| Russell Corner Historic District |
| Russell Garrison |
| Russell, Jason House |
| Russells Mills Village Historic District |
| Russell, The |
| Russian Cemetery |
| Sabbath Day House |
| 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 |
Data from United States Park Service and Wikidata
