Ohio - Criteria: B (person)
| Abbott-Page House |
| Acton House |
| Adams, Demas, House |
| Adams, George W., House |
| Adams, G., House |
| Adams-Gray House |
| Adena (Thomas Worthington House) |
| Aldrich, Aaron, House |
| Alexander, Dr. William S., House |
| American Felsol Company Building |
| Anderson, Judge William Shaw, House |
| Anderson-Shaffer House |
| Andrews, Ebenezer, House |
| Anna-Dean Farm |
| Antioch Hall, North And South Halls |
| Armstrong Farm |
| Arnold Homestead |
| Ashtabula County Courthouse Group |
| Augspurger, Samuel, House |
| Austin, Eliphalet, House |
| Bagby-Hossler House |
| Baker, Maj. John C., House |
| Baldwin, Joseph W., House |
| Barber, O. C., Barn No. 1 |
| Barber, O. C., Colt Barn |
| Barber, O. C., Creamery |
| Barber, O. C., Machine Barn |
| Barber, O. C., Piggery |
| Barker, Col. Joseph, House |
| Barker, Judge Joseph, Jr., House |
| Barnhisel, Henry II, House |
| Barrett, George, Concrete House |
| Barr House |
| Beall, Gen. Reasin, House |
| Beckett-Manrod House |
| Beech Avenue Houses |
| Beecher, Lucas, House |
| Beer, Judge Thomas, House |
| Beir, Anna, House |
| Bell, C.S., Foundry and Showroom |
| Bellevue |
| Bell Mansion |
| Bell's First Home |
| Bell's Opera House |
| Benninghofen House |
| Bepler, August, House |
| Bernhard, Frederick, House |
| Bethel Methodist Church |
| Bieber, George, House and Farm |
| Blake, H. G., House |
| Boeckling Building |
| Boeckling, G. A., House |
| Bolton, Chester and Frances, House |
| Bombeck, Erma, House |
| Bookwalter, Francis, House |
| Bradford, Henry, Farm |
| Bramble, Ayres L., House |
| Bromwell, Jacob, House |
| Brooks, James, House |
| Broom-Braden Stone House |
| Brownella Cottage and Grace Episcopal Church and Rectory |
| Brown, Jim, House |
| Brown, John, Farmhouse |
| Brown, John Hartness, House |
| Brown, Samuel N., House |
| Buckner, Dr. Philip, House And Barn |
| Burchfield Homestead |
| Burdsal, Samuel, House |
| Burrell, Jabez and Robbins, House and Cheese Factory |
| Burrell-King House |
| Burt Building |
| Bushnell, Martin, House |
| Butler, Cyrus, House |
| Buttles-Johnson House |
| Cable, Laurence House |
| Cahoon, Wilbur, House |
| Caldwell, Samuel, House |
| Carkhuff, Stacy G., House |
| Carnegie Library and Henry St. Clair Memorial Hall |
| Carty, J.-R. J. Tussing House |
| Cary, Freeman Grant, Pleasant Hill Academy |
| Cary, Hiram W., House |
| Cawood, Richard L., Residence |
| Cermak Building |
| Chapman-Hutchinson House |
| Clemens, James and Sophia, Farmstead |
| Clement, George S., House |
| Clemons, Alexander, House |
| Cleveland Discount Building |
| Clossman Hardware Store |
| Clovernook |
| Clutts House |
| Cockerill House |
| Columbian House |
| Columbus Near East Side District |
| Commercial Building |
| Cooke, Jay, House |
| Cote Bonneville |
| Cox, George B., House |
| Cox, Jacob D., House |
Data from United States Park Service and Wikidata
