H
- Hagerstown, Maryland – Jonathan Hager
- Halifax, Vermont – Earl of Halifax
- Hall Station, California – John Hall (local landowner)
- Hallowell, Maine – Benjamin Hallowell (landowner)
- Hamden, Connecticut – John Hampden (English statesman) (note spelling)
- Hamilton, Massachusetts – Alexander Hamilton
- Hamilton, Montana – J.W. Hamilton (provided the right-of-way to the railroad)
- Hamilton City, California – J.G. Hamilton (sugar company president)
- Hamilton County, Florida – Alexander Hamilton
- Hammond, Indiana – George H. Hammond (Detroit butcher who founded a meat-packing plant here)
- Hammonton, California – W.P. Hammond (gold mine official)
- Hampden, Maine – John Hampden (English patriot)
- Hancock, 5 places in Maine/Massachusetts/Michigan/New Hampshire/Vermont – John Hancock
- Hanford, California – James Madison Hanford (railroad executive)
- Hankamer, Texas – I. A. Hankamer (early settler)
- Hanson, Massachusetts – Alexander C. Hanson (Maryland newspaper publisher and U.S. Senator)
- Harbin Springs, California – James M. Harbin (discoverer of the springs)
- Hardenburgh, New York – Johannes Hardenburgh (landowner)
- Hardin, Montana – Samuel Hardin (friend of developer Charles Henry Morrill)
- Harlan, Iowa – :James Harlan (United States Senator)
- Harlowton, Montana – Richard A. Harlow (president of the Montana Railroad)
- Harriman, New York – E. H. Harriman (president of the Union Pacific Railroad)
- Harrisburg, Inyo County, California – Shorty Harris (gold discoverer)
- Harrisburg, Pennsylvania – John Harris, Sr.
- Harrison, Maine – Harrison Gray Otis (landowner)
- Harrison, New Jersey – William Henry Harrison
- Harrison, New York – John Harrison (Quaker leader)
- Harrison Township, New Jersey – William Henry Harrison
- Harrisonburg, Virginia – Thomas Harrison (early settler who founded the community)
- Harrisville, New Hampshire – Milan Harris (mill owner)
- Hart's Location, New Hampshire – Colonel John Hart
- Hathaway Pines, California – Robert B. Hathaway (first postmaster)
- Hattiesburg, Mississippi – Hattie Hardy (wife of pioneer lumberman and civil engineer William H. Hardy)
- Haugan, Montana – H. G. Haugan (land commissioner of the Chicago, Milwaukee, St. Paul and Pacific Railroad)
- Hawley, Massachusetts – Joseph Hawley (local leader in the American Revolution)
- Hayes, California – William J. Hayes (first postmaster)
- Hayward, California – William Dutton Hayward (early settler)
- Hayward, Minnesota – David Hayward (settler)
- Hazard, Kentucky – Commodore Oliver Hazard Perry (hero of the War of 1812)
- Hazardville, Connecticut – Colonel Augustus George Hazard (gunpowder manufacturer)
- Hazelton, California – Hazelton Blodget (son of Hugh A. Blodget, oilman)
- Hearst, California – George Hearst
- Heath, Massachusetts – General William Heath
- Heber, California – A.H. Heber (development company president)
- Helm, California – William Helm (early rancher)
- Henderson, Nevada – U.S. Senator Charles B. Henderson
- Hendry County, Florida – Major Francis A. Hendry
- Henniker, New Hampshire – John Henniker, 1st Baron Henniker
- Herkimer, New York – Nicholas Herkimer (militia general in the American Revolutionary War)
- Herlong, California – Capt. Henry W. Herlong (World War II casualty)
- Hernando County, Florida – Hernando de Soto
- Hershey, California – David N. Hershey (California assembly member)
- Heyburn, Idaho – Senator Weldon B. Heyburn
- Hildreth, California – Tom Hildreth (founder and merchant)
- Hill, New Hampshire – Isaac Hill (governor of New Hampshire)
- Hillrose, Colorado – Rose Hill Emerson (daughter of early landholder)
- Hillsborough, New Hampshire – Sir Wills Hill, 1st Marquess of Downshire and 1st Earl of Hillsborough
- Hillsborough County, Florida – Sir Wills Hill, 1st Marquess of Downshire and 1st Earl of Hillsborough
- Hinesburg, Vermont – Abel Hine (town clerk)
- Hinsdale, Massachusetts – Rev. Theodore Hinsdale (woolen mill owner)
- Hinsdale, New Hampshire – Colonel Ebenezer Hinsdale
- Hinsdale, New York – Colonel Ebenezer Hinsdale (indirectly, via Hinsdale, New Hampshire)
- Hiram, Maine – Hiram I (biblical king of Tyre)
- Hobergs, California – Gustave Hoberg (founder, resort owner)
- Hodson, California – J.J. Hodson (copper mining financier)
- Hoffman Estates, Illinois – Sam and Jack Hoffman (builders)
- Holbrook, Massachusetts – Elisha N. Holbrook (benefactor)
- Holderness, New Hampshire – Robert Darcy, 4th Earl of Holderness
- Holland, Massachusetts – Henry Fox, 1st Baron Holland (English statesman)
- Hollidaysburg, Pennsylvania – Adam and William Holliday (founders)
- Hollis, New Hampshire – John Holles, Earl of Clare (ancestor of colonial governor Benning Wentworth) (note spelling)
- Holliston, Massachusetts – Thomas Hollis, Esq. of London, England (a benefactor of Harvard College)
- Homer, New York – Homer (Greek poet)
- Hookton, California – John Hookton (founder)
- Hopkinsville, Kentucky – General Samuel Hopkins
- Hopkinton, Massachusetts – Edward Hopkins (benefactor of Harvard University)
- Hopkinton, New Hampshire – Edward Hopkins (benefactor of Harvard University) (indirectly, via Hopkinton, Massachusetts)
- Hopkinton, New York – early settlers with the name Hopkins
- Horstville, California – E. Clemons Horst (rancher)
- Horton, California – Ben Horton (railroad official)
- Houlton, Maine – Joseph Houlton (settler)
- Houston, Minnesota and Houston, Texas – Sam Houston
- Howard, Brown County, Wisconsin and Howard, Chippewa County, Wisconsin – Brigadier General Benjamin Howard (officer in the War of 1812)
- Howard Springs, California – C.W. Howard (resort owner)
- Howards Grove, Wisconsin – H.B. Howard (hotelier and postmaster)
- Howland, Maine – John Howland (Mayflower passenger)
- Hubbardston, Massachusetts – Thomas Hubbard (Massachusetts Speaker of the House of Representatives and landowner)
- Hubbardton, Vermont – Thomas Hubbard (landholder)
- Hudson, Maine – Charles Hudson (indirectly, via Hudson, Massachusetts)
- Hudson, Massachusetts – Charles Hudson (United States Representative)
- Hudson, New York – Henry Hudson
- Humble, Texas – Pleasant Smith "Plez" Humble (postmaster)
- Humboldt, South Dakota – Alexander von Humboldt (German scientist, explorer and diplomat)
- Humphreys Station, California – John W. Humphreys (pioneer)
- Huntington, Vermont – Josiah, Charles and Marmaduke Hunt (landholders)
- Huntington, West Virginia – Collis P. Huntington
- Huntington Beach, California – Henry E. Huntington
- Huntley, Montana – S.O. Huntley (partner in the stagecoach firm of Clark & Huntley)
- Huntsville, Alabama – John Hunt (settler)
- Hurley, New York – Francis Lovelace, Baron Hurley of Ireland
- Hutchins, California – T.B. Hutchins (local landowner)
- Hyannis, Massachusetts – Iyannough (sachem of the Cummaquid Native American tribe)
- Hyde Park, Vermont – Captain Jedediah Hyde (landowner)
- Hydesville, California – John Hyde (local landowner)
- Hylandville, California – L.C. Hyland (founder)
- Hysham, Montana – Charlie J. Hysham (cattleman)
Read more about this topic: List Of American Places Named After People