F
- Fagan, California – Edward Fagan (local landowner)
- Fairbanks, Alaska – Charles W. Fairbanks
- Fairbanks, Mendocino County, California – Isabel G. Fairbanks (first postmaster)
- Fairfax, California – Charles S. Fairfax
- Fallon, California – Luke and James Fallon (early settlers)
- Fannett, Texas – B. J. Fannett (local landowner who opened a general store there in the 1890s)
- Fargo, North Dakota – William Fargo
- Farley, Mendocino County, California – Jackson Farley (early settler)
- Farragut, Iowa and Farragut, Tennessee – David Farragut
- Farwell, California – James Dumaresy Farwell (landowner)
- Fayette, 12 places in Alabama/Indiana/Iowa/Maine/Michigan/Mississippi/Missouri/New York/Ohio/Utah/West Virginia/Wisconsin – Gilbert du Motier, marquis de La Fayette
- Fayetteville, 11 places in Arkansas/Georgia/Illinois/Indiana/New York/North Carolina/Ohio/Pennsylvania/Tennessee/Texas/West Virginia – Gilbert du Motier, marquis de La Fayette
- Fayette City, Pennsylvania – Gilbert du Motier, marquis de La Fayette
- Fellows, California – Charles A. Fellows (railroad contractor)
- Femmon, California – Frank Femmon (apple grower)
- Fenton, New York – Governor Reuben Fenton
- Ferdinand, Vermont – from one of the titles for Prince Karl Wilhelm Ferdinand of Brunswick-Lunenburg
- Fields Landing, California – Waterman Field (early settler)
- Finley, California – Samuel Finley Sylar (early settler)
- Firebaugh, California – Andrew D. Firebaugh
- Firestone, Colorado – Jacob Firestone (landowner)
- Fitchburg, Massachusetts – John Fitch (settler)
- Fitzwilliam, New Hampshire – William Fitzwilliam, 4th Earl Fitzwilliam (cousin of Governor John Wentworth)
- Flagler County, Florida – Henry Flagler, built the Florida East Coast Railway
- Flandreau, South Dakota – Charles Eugene Flandrau
- Fleener, California – Sam Fleener (homesteader)
- Florence, Kentucky – Florence Conner (wife of early settler)
- Florence, South Carolina – Florence Hartlee (daughter of a railroad president who lived in the area)
- Floresville, Texas – Don Francisco Flores de Abrego (early settler)
- Floyd, Virginia – John Floyd (Virginia politician)
- Floydada, Texas – Dolphin Floyd (died while defending the Alamo) and Ada Price (wife of a local landholder) (indirectly, via Floyd County, Texas)
- Fluhr, California – C.G. Fluhr (railroad official)
- Forbestown, California – B.F. Forbes (local store owner)
- Forsyth, Montana – General James W. Forsyth
- Fort Collins, Colorado – Colonel William O. Collins
- Fort Dodge, Iowa – Henry Dodge (U.S. senator from Wisconsin) (indirectly, after the fort named after him)
- Fort John, California – John Stuart
- Fort Kent, Maine – Edward Kent (governor of Maine)
- Fort Lauderdale, Florida – Major William Lauderdale
- Fort Lee, New Jersey – Charles Lee
- Fort Lupton, Colorado – Lieutenant Lancaster Lupton (built a trading post here)
- Fort Morgan, Colorado – Colonel Christopher A. Morgan
- Fort Myers, Florida – Col. Abraham C. Myers
- Fort Myers Beach, Florida – Col. Abraham C. Myers
- Fort Romie, California – Charles Romie (landowner)
- Fort Seward, California – William H. Seward
- Fort Wayne, Indiana – Anthony Wayne
- Fort Worth, Texas – William Jenkins Worth
- Foster, Rhode Island – U.S. Senator Theodore Foster
- Foster Bar, California – William M. Foster (early settler and merchant)
- Fouts Springs, California – John F. Fouts (discoverer of the springs)
- Fowler, California – Thomas Fowler (California State Senator)
- Foxborough, Massachusetts – Charles James Fox
- Francestown, New Hampshire – Frances Deering Wentworth (Governor John Wentworth's wife)
- Franklin – Benjamin Franklin, 37 places in
- Alabama – Arkansas – Sacramento County, California – Connecticut – Georgia – Idaho – Illinois – Indiana – Iowa – Kentucky – Louisiana – Maine – Massachusetts – Michigan – Minnesota – Missouri – Nebraska – New Hampshire – New Jersey – Delaware County, New York – Franklin County, New York – Macon County, North Carolina – Surry County, North Carolina – Ohio – Cambria County, Pennsylvania – Venango County, Pennsylvania – Tennessee – Texas – Vermont – Virginia – West Virginia – Jackson County, Wisconsin – Kewaunee County, Wisconsin – Manitowoc County, Wisconsin – Milwaukee County, Wisconsin – Sauk County, Wisconsin – Vernon County, Wisconsin
- Franklin Lakes, New Jersey – Benjamin Franklin
- Franklin Park, New Jersey – Benjamin Franklin
- Franklin Township – Benjamin Franklin, 77 places in
- DeKalb County, Illinois – DeKalb County, Indiana – Floyd County, Indiana – Grant County, Indiana – Harrison County, Indiana – Hendricks County, Indiana – Henry County, Indiana – Johnson County, Indiana – Kosciusko County, Indiana – Marion County, Indiana – Montgomery County, Indiana – Owen County, Indiana – Pulaski County, Indiana – Putnam County, Indiana – Randolph County, Indiana – Ripley County, Indiana – Washington County, Indiana – Wayne County, Indiana – Allamakee County, Iowa – Appanoose County, Iowa – Bremer County, Iowa – Cass County, Iowa – Clarke County, Iowa – Decatur County, Iowa – Story County, Iowa – Bourbon County, Kansas – Edwards County, Kansas – Franklin County, Kansas – Jackson County, Kansas – Clare County, Michigan – Houghton County, Michigan – Lenawee County, Michigan – Wright County, Minnesota – Bergen County, New Jersey – Gloucester County, New Jersey – Hunterdon County, New Jersey – Somerset County, New Jersey – Warren County, New Jersey – Rowan County, North Carolina – Surry County, North Carolina – Adams County, Ohio – Brown County, Ohio – Clermont County, Ohio – Columbiana County, Ohio – Coshocton County, Ohio – Darke County, Ohio – Franklin County, Ohio – Fulton County, Ohio – Harrison County, Ohio – Jackson County, Ohio – Licking County, Ohio – Mercer County, Ohio – Monroe County, Ohio – Morrow County, Ohio – Portage County, Ohio – Richland County, Ohio – Ross County, Ohio – Shelby County, Ohio – Tuscarawas County, Ohio – Warren County, Ohio – Wayne County, Ohio – Adams County, Pennsylvania – Beaver County, Pennsylvania – Bradford County, Pennsylvania – Butler County, Pennsylvania – Carbon County, Pennsylvania – Chester County, Pennsylvania – Columbia County, Pennsylvania – Erie County, Pennsylvania – Fayette County, Pennsylvania – Greene County, Pennsylvania – Huntingdon County, Pennsylvania – Luzerne County, Pennsylvania – Lycoming County, Pennsylvania – Snyder County, Pennsylvania – Susquehanna County, Pennsylvania – York County, Pennsylvania
- Franklinton, Louisiana and Franklinton, North Carolina – Benjamin Franklin
- Frederick, Colorado – Frederick A. Clark (landholder)
- Frederick, Maryland – Frederick Calvert, 6th Baron Baltimore
- Fredericksburg, Virginia – Frederick, Prince of Wales
- Fremont, California, and numerous other Fremonts – John C. Frémont
- Friant, California – Thomas Friant (lumber company executive)
- Frye Island, Maine – Captain Joseph Frye
- Fryeburg, Maine – Captain Joseph Frye
- Fullerton, California – George H. Fullerton (president of the Pacific Land and Improvement Company)
- Fulton, South Dakota – Robert Fulton (inventor of the first commercially successful steamboat)
Read more about this topic: List Of American Places Named After People