Ohio - Area of significance: Religion
| All Souls Unitarian-Universalist Church |
| Apostolic Bethlehem Temple Church |
| Arnold Homestead |
| Aurora Center Historic District |
| Baldwin-Wallace College South Campus Historic District |
| Beam Farm Woodland Archeological District |
| Bethel Methodist Church |
| Bethel Methodist Episcopal Church |
| Brownella Cottage and Grace Episcopal Church and Rectory |
| Brownhelm Historic District |
| Cassella Catholic Church and Rectory |
| Casstown Lutheran Stone Church |
| Chalfant Church |
| Chesterville Methodist Church |
| Chickasaw School and Rectory |
| Christ Church At The Quarry |
| Christ Episcopal Church |
| Clifton Avenue Historic District |
| Concord Hicksite Friends Meeting House |
| Congregational Church Of Austinburg |
| Congregational Church of Christ |
| Covenant First Presbyterian Church |
| Cronenwett, Georg, House |
| Danford, Samuel, Farm, Church and Cemetery |
| Deming, Col. Simeon, House |
| Dublin Christian Church |
| Dublin Christian Church |
| Dunbar Historic District |
| Egypt Catholic Church and Rectory |
| Emanuel Lutheran Church of Montra |
| Emmanuel Church |
| Emmanuel's Evangelical Lutheran Church |
| Fenwick Club Annex |
| First Church of Christ in Euclid |
| First Church of Christ, Scientist |
| First Congregational Church And Lexington School |
| First Presbyterian Church |
| First Presbyterian Church |
| First Reformed and First Lutheran Churches |
| First Unitarian Church Of Marietta |
| First Universalist Church of Olmsted |
| Free Will Baptist Church Of Auburn |
| Friends Boarding School and Ohio Yearly Meetinghouse Historic District |
| Friends Meetinghouse |
| Gambier Historic District |
| Gates Mills Methodist Episcopal Church |
| Gnadenhutten Massacre Site |
| Grace Episcopal Church |
| Grant, William H., House |
| Gruenwald Convent |
| Hanby, Benjamin, House |
| Harvey, Eli, House |
| Helen Chapel |
| Herrington, John, House and Herrington Bethel Church |
| Historic Associate Reformed Church and Cemetery |
| Holy Cross Church, Rectory and School |
| Holy Cross Lithuanian Roman Catholic Church |
| Holy Cross Monastery and Chapel |
| Holy Rosary Church |
| Hudson Historic District |
| Immaculate Conception Church |
| Immaculate Conception Church, School, and Rectory |
| Immaculate Conception Rectory at Botkins |
| Jacob's Church |
| Johnson, John, Farm |
| Kern Effigy (33WA372) |
| Kirtland Temple |
| Lakeside Historic District |
| Macedonia Church |
| Maltby, Henry, House |
| Maple-Dell |
| Maria Stein Convent |
| Marietta Historic District |
| Marmon, Martin, House |
| McCracken-McFarland House |
| McCracken-Scott House |
| Methodist Church, Old |
| Methodist Episcopal Church |
| Miami Monthly Meeting Historic District |
| Moore, Philip, Stone House |
| Mound City Group National Monument |
| Mount Pleasant Historic District |
| Mount Zion Presbyterian Church |
| Muskingum College Campus Historic District |
| Myers Hall |
| Oak Hill Welsh Congregational Church |
| Ohio Baptist General Association Headquarters |
| Oregon Historic District |
| Over-the-Rhine Historic District |
| Pilgrim Presbyterian Church |
| Plum Street Temple |
| Rankin Historic District |
| Richards-Sewall House |
| Sacred Heart of Jesus Churches |
| Saint Peter and Saint Paul Historic District-Oliver's Second addition |
| Salem Bear Creek Church, Salem Evangelical Lutheran Church |
| Salem Methodist Church Complex |
| Schoenbrunn Site |
| Seborn, Frederick Augustus, House |
| Second Baptist Church |
Data from United States Park Service and Wikidata
