The Fallen Timbers Battlefield was the site of the Battle of Fallen Timbers on 20 August 1794. The battle, a decisive American victory over Native American and British opponents, effectively ended the Northwest Indian War, securing the Old Northwest for settlement. An area believed to be the battle site, located in Maumee, Ohio, was declared a National Historic Landmark in 1960. That site, now the Fallen Timbers State Memorial, is about 0.25 miles (0.40 km) south of the actual battlefield, which was identified in 1995, and much of which is now preserved as part of the Fallen Timbers Battlefield and Fort Miamis National Historic Site along with Fort Miami. The National Historic Site was established in 1999 as a partnership between the National Park Service, Metroparks Toledo, and the Ohio History Connection.

The Battle of Fallen Timbers was the final battle of the Northwest Indian War, a struggle between Native American tribes affiliated with the Northwestern Confederacy and their British allies, against the nascent United States for control of the Northwest Territory. The battle took place amid trees toppled by a tornado near the Maumee River in northwestern Ohio at the site of the present-day city of Maumee, Ohio.