Ohio - Criteria: C (architecture/engineering)
| Steubenville Commercial Historic District |
| Steubenville YMCA Building |
| Stevenson, Joshua, House |
| Stewart Towers |
| St. Francis Catholic Church and Rectory |
| St. Francis De Sales Church Historic District |
| St. Francis Hospital |
| St. Francis Seminary |
| St. Francis Xavier Church |
| St. George Parish and Newman Center |
| St. Henry Catholic Church |
| St. Henry Roman Catholic Church and Rectory |
| St. Ignatius High School |
| Stites House |
| Stivers High School |
| St. James Episcopal Church |
| St. James Episcopal Church |
| St. James Episcopal Church |
| St. John Catholic Church |
| St. John Catholic Church and Parish Hall |
| St. John's AME Church |
| St. John's Catholic Church |
| St. John's Episcopal Church |
| St. John's Episcopal Church |
| St. John's Evangelical Lutheran Church |
| St. John's Evangelical Lutheran Church |
| St. John's Lutheran Church |
| St. John The Baptist Roman Catholic Church |
| St. Joseph Catholic Church and Rectory |
| St. Joseph Catholic Church and School |
| St. Joseph Roman Catholic Church |
| St. Joseph's Church and Friary |
| St. Ladislaus Roman Catholic Church |
| St. Louis Catholic Church and Rectory |
| St. Louis Church |
| St. Luke's Episcopal Church |
| St. Luke's Hospital |
| St. Mark's Episcopal Church |
| St. Martin's Catholic Church |
| St. Mary Parish Hall |
| St. Mary Roman Catholic Church |
| St. Mary's Catholic Church |
| St. Mary's Catholic Church |
| St. Mary's Catholic School |
| St. Mary's Church and Rectory |
| St. Mary's Church of the Immaculate Conception |
| St. Mary's Hall, University Of Dayton |
| St. Mary's Of Morges |
| St. Mary's Roman Catholic Church |
| St. Mary's Roman Catholic Church |
| St. Michael Catholic Church |
| St. Michael Catholic Church Complex |
| St. Michael the Archangel Catholic Church |
| St. Nicholas Catholic Church and Rectory |
| St. Nicholas's Catholic Church |
| Stockbridge Apartment Building |
| Stoddart Block |
| Stokes, Benjamin A., House |
| Stoll, Adam J., House |
| Stone, Capt. Jonathan, House |
| Stone House, The |
| Stonelick Covered Bridge |
| Stoneman, Joseph, House |
| Stone's Block |
| Stormont, David, House |
| St. Patrick Catholic Church and Rectory |
| St. Patrick's Catholic Church |
| St. Patrick's Catholic Church |
| St. Paul AME Church |
| St. Paul Church Historic District |
| St. Paul's Catholic Church and Rectory |
| St. Paul's Episcopal Church |
| St. Paul's Episcopal Church |
| St. Paul's Episcopal Church |
| St. Paul's Episcopal Church |
| St. Paul's Episcopal Church of East Cleveland |
| St. Paul's Reformed Church |
| St. Paul's Sunday School and Parish House |
| St. Peter Catholic Church and Rectory |
| St. Peter Church |
| St. Peter Evangelical Lutheran Church |
| St. Peter-In-Chains Cathedral |
| St. Peters Church |
| St. Peter's Evangelical Lutheran Church |
| St. Raphael Church |
| Street, John, House |
| Streich Apartments |
| St. Remy Catholic Church |
| Stringer Stone House |
| Strongsville Town Hall |
| St. Rosa Church |
| St. Rose Catholic Church Complex |
| Strouss-Hirschberg Company |
| Stryker Depot |
| St. Sebastian Catholic Church and Rectory |
| Sts. Peter & Paul Church and Rectory |
| St. Stanislaus Church |
| St. Stephen Church |
| St.Stephens' AME Church |
| St. Theodosius Russian Orthodox Cathedral |
Data from United States Park Service and Wikidata
