Fort Harrison (disambiguation)
Fort Harrison may refer to:
- Siege of Fort Harrison, an American siege in 1812 near modern Terre Haute, Indiana
- Fort Harrison, Confederate fort built to defend Richmond, Virginia during the American Civil War
- Fort Benjamin Harrison, US Army post in Marion County, Indiana
- Fort Harrison, a Seminole War-era military outpost on the west coast of Florida, on a site which now lies within the city of Clearwater
- Fort Harrison Hotel, part of the headquarters for the Church of Scientology in Clearwater, Florida
- Fort William Henry Harrison, a National Guard post in Montana