Fort Washington is the name of several places in the United States of America.

• Fort Washington, a military fortress on Manhattan Island in the American Revolutionary War
• Fort Washington, Maryland.
• Fort Washington, Pennsylvania
• A neighborhood in the borough of Manhattan in New York City (named for the fortress above mentioned). The neighborhood is better known as Washington Heights.
• A former frontier outpost at Cincinnati, Ohio
• Fort Washington , a still-extant earthworks fortification in Cambridge, Massachusetts dating from the Siege of Boston.

These should not be confused with places named Port Washington.