All - Architectural style - Greek Revival architecture
| Redcliffe |
| Redding Center Historic District |
| Red House |
| Reding, Mrs. William R., House |
| Redlands |
| Reed, Charles Manning, Mansion |
| Reeder-Omenson Farm |
| Reed, Henry, Jr., House |
| Reed, James, House |
| Reese, Edwin, House |
| Rees, John, David, and Jacob, House |
| Reformed Church of Newtown Complex |
| Reformed Church on Staten Island |
| Reformed Dutch Church of New Hurley |
| Reformed Dutch Church of Rensselaer in Watervliet |
| Reformed Mennonite Church, Former |
| Reformed Presbyterian Church of Vernon |
| Rehnstrom, August and Margaretha, House |
| Rehoboth Methodist Church |
| Reid House |
| Reid-Jones-Carpenter House |
| Reidville Academy Faculty House |
| Reinhardt, William Pinckney, House |
| Remick, Capt. Enoch, House |
| Remington Historic District |
| Renick Farm |
| Reorganized Church of Jesus Christ of Latter Day Saints |
| Reynolds, George, House |
| Reynolds, Henry T. and Rebecca, House |
| Reynolds Homestead |
| Rhea-McEntire House |
| Rhoda, Fred, House |
| Rhodehouse, Nelson, House |
| Rhodes House |
| Rice, Ezra, House |
| Rice's Hotel |
| Richard, John, Residence |
| Richards Mansion |
| Richardson-Brinkman Cobblestone House |
| Richardson, Dr. S. O., House |
| Richardson, Luke, House |
| Richardson, William, House |
| Rich, Charles B., House |
| Richeson, John Brett, House |
| Richland |
| Richland Baptist Church |
| Richland Farm |
| Richland Plantation |
| Richmond |
| Richmond Community Church |
| Riddick House |
| Riddick House |
| Rider-Hopkins Farm and Olmsted Camp |
| Ridgebury Congregational Church |
| Ridge, The |
| Ridgewood |
| Rienzi Plantation House |
| Riner Historic District |
| Rion Hall |
| Ripley County Courthouse |
| Rippavilla |
| Rippey Cobblestone Farmhouse |
| Ripton Community House |
| Ritter, Simon, Cobblestone Farmhouse |
| Ritzman, William, House |
| Rivermont |
| Riverside |
| Riverside |
| Riverside |
| Riverside Farm |
| Riverside Plantation |
| Riverview |
| Riverview |
| Riverview House |
| Riverwood |
| Roane County Courthouse |
| Roaring Spring |
| Robb, Dr. William, House |
| Robbins, Joseph, House |
| Roberts Chapel |
| Roberts, John Spencer, House |
| Robertson, Col. Elijah Sterling Clack, Plantation |
| Robertson House |
| Roberts-Vaughan House |
| Roberts, William D., House |
| Robie, Reuben, House |
| Robinson, Charles, House |
| Robinson House |
| Robinson House |
| Robinson, Jesse, House |
| Robinson, John, House |
| Robinson Springs United Methodist Church |
| Robinson, William, P., House |
| Robnett-Payne House |
| Rochambeau Farm |
| Rock Castle |
| Rockdale Community Church |
| Rock Hill Farm |
| Rock Island Arsenal |
| Rockland |
Data from United States Park Service and Wikidata
