Fort Kearny may refer to:
- Fort Kearny, a historic fort in Nebraska
- Fort Phil Kearny, a historic fort in Wyoming
- Fort Kearny (Washington, D.C.), a historic fort in Washington, D.C.
- Fort Kearny (Rhode Island), a historic fort in Narragansett, Rhode Island (often misspelled Fort Kearney)
- Camp Kearny, a former Army and Navy base in San Diego, California