Fort Henry is the name of:

• Fort Henry (Pennsylvania), stockade built during the French and Indian War, in Berks County, Pennsylvania
• Fort Henry, Missouri, an unincorporated community
• Fort Henry (Virginia), a 1646 fort near present-day Petersburg, Virginia
• Fort Henry (West Virginia), a 1774 fort near present–day Wheeling, West Virginia
• Fort Henry, a winter camp built by Andrew Henry (fur trader) on Henry's Fork of the Snake River in 1810-11
• Fort Henry National Historic Site (1837) in Kingston, Ontario, a limestone redoubt and connected fortified battery
• Fort Henry (Jersey), an 18th-century fort on the island of Jersey
• Fort Henry, Tennessee, site of the Battle of Fort Henry (1862) in Tennessee during the American Civil War
• Fort Henry (bunker), a Second World War bunker in Studland Bay, Dorset
• Fort Henry on the Missouri River, an 1822 fort southwest of present-day Williston, North Dakota

• Battle of Fort Henry, in 1862 during the American Civil War, in Middle Tennessee
• Siege of Fort William Henry, in 1757 during the French and Indian War, on the frontier between the British Province of New York and the French Province of Canada
• Siege of Fort Henry (1777), during the American Revolutionary War, in Virginia
• Siege of Fort Henry (1782), in the same place in Virginia
• Fort McHenry, Maryland
• USS Fort Henry, a gunboat which served in the Union Navy during the American Civil War