Encyclopedias, Almanacs, Transcripts, and Maps
- Hopkins, John Burroughs
- Hopkins, Stephen
- Horace B. Liveright
- Horace Wells
- Horacio Vázquez
- Horatio Herbert Kitchener
- Hormel Strike
- Horry, Daniel Huger
- Horry, Hugh
- Horry, Peter
- Horse, Crazy
- Horseneck Landing (West Greenwich), Connecticut
- Horseshoe Bend, Battle of
- Hortalez & Cie
- Horthy, Miklós (1868–1957)
- hosiery trade
- Hospitals in the United States, Black
- Hot Autumn
- Hotham, William
- Houari Boumediene