Ohio - Area of significance: Architecture
| Fagin, Aaron, House |
| Fairborn Theatre |
| Fairfield County Infirmary |
| Fairhill Road Village Historic District |
| Fairmont Avenue Historic District |
| Fairmount Boulevard District |
| Fairport Harbor West Breakwater Light |
| Fairview Community Park Historic District |
| Fairview Public School Annex |
| Falls Stamping and Welding Building |
| Farmers Branch, State Bank of Ohio |
| Farmers National Bank |
| Fay, Charles, House |
| Fayette County Courthouse |
| Federal Building |
| Federal Land Office |
| Federal Reserve Bank Of Cleveland |
| Federalton |
| Feick Building |
| Felkner-Anderson House |
| Felton School |
| Fenway Hall |
| Fenwick Club Annex |
| Ferguson, Andrew, House |
| Ferney, John, House |
| Ferrell, Silas, House |
| Ferrey, Aaron, House |
| Ferris, Eliphalet, House |
| Ferris, Joseph, House |
| Field, Walter, House |
| Fife, Harry E., House |
| Fifth and Lawrence Streets Residential District |
| Fifth Avenue and North High Historic District |
| Findlay Downtown Historic District |
| Findlay Market Building |
| Fine Arts Building |
| Fire Blocks Historic District |
| Firestone, Charles E., House |
| First Baptist Church |
| First Church of Christ in Euclid |
| First Church of Christ Scientist |
| First Church of Christ, Scientist |
| First Church of Christ, Scientist |
| First Church Of Christ, Scientist |
| First Congregational Church |
| First Congregational Church |
| First Congregational Church |
| First Congregational Church |
| First Congregational Church And Lexington School |
| First Congregational Church of Cuyahoga Falls |
| First Congregational-Unitarian Church |
| First English Lutheran Church |
| First German Methodist Episcopal Church |
| First Hancock County Courthouse |
| First Lutheran Church |
| First Methodist Church |
| First Methodist Episcopal Church |
| First Methodist Episcopal Church |
| First Methodist Episcopal Church of Alliance, Ohio |
| First Methodist Episcopal-Holy Trinity Greek Orthodox Church |
| First National Bank and Trust Building |
| First National Bank Building |
| First National Bank Building |
| First National Bank Building |
| First National Bank Building |
| First National Bank Tower |
| First Presbyterian Church |
| First Presbyterian Church |
| First Presbyterian Church |
| First Presbyterian Church Of Maumee Chapel |
| First Presbyterian Church of Wapakoneta |
| First Unitarian Church Of Marietta |
| First United Methodist Church |
| First United Methodist Church |
| First Universalist Church |
| First Universalist Church of Olmsted |
| Fisher, E.D., House |
| Fitz Randolph-Rogers House |
| Five Mile House |
| Five Oaks |
| Fleming-Hoffman Farm |
| Floral Hall |
| Floraville Historic District |
| Florence Corners School |
| Flory, Joseph, House |
| Follett-Moss-Moss Residences |
| Foor-Alspach House |
| Ford Motor Company Cincinnati Plant |
| Ford Motor Company Cleveland Plant |
| Forest City Bank Building |
| Forest City Brewery |
| Forest Glen Estates Historic District |
| Forest Hill Historic District |
| Forest Hill Realty Sales Office |
| Forest Lawn Memorial Park |
| Formica Corporation-Crystal Arcade-Contemporary Arts Center Building |
| Forsythe-Puhl House |
| Fort Ball-Railroad Historic Disrict |
| Fort Hayes |
| Fort Industry Square |
Data from United States Park Service and Wikidata
