Fort Oglethorpe is a city predominantly in Catoosa County in the space of some portions in Walker County in the U.S. state of Georgia. As of the 2020 census, the city had a population of 10,423. It is ration of the Chattanooga, TN–GA Metropolitan Statistical Area. It is house to Lakeview – Fort Oglethorpe High School.

The United States Army customary a cavalry state at the site of Hargrave, Georgia, an unincorporated town situated adjoining the Chickamauga National Battlefield. The existing treaty was named for a Confederate soldier, William Hamilton Hargrave, who along bearing in mind his wife Amelia Cecilia Strange-Hargrave owned most of the land in the area. The couple was capably known in the 19th century to travellers heading to Ross’s Landing on the Tennessee River from LaFayette, Georgia. William Hargrave and other landowners in the Place were motivated to sell their property to the Army to be used as a base for the 6th Cavalry. The Chickamauga Post normal in 1902 by the U.S. Army was vanguard named Fort Oglethorpe after James Oglethorpe, the founder of the Colony of Georgia. During and after World War I, the fort served in the company of 1917 and 1920 as an detention camp for civilian internees and prisoners of war. During World War II, the area served as a war-time induction and government center, and once more housed prisoners of war. Fort Oglethorpe was a major training center for the Women’s Army Corps during World War II. The post land was stated surplus in 1947 and returned to civilian hands, forming the nucleus for a town that was incorporated in 1949.

Fort Oglethorpe is located in western Catoosa County and northeastern Walker County at 34°56′44″N 85°14′44″W / 34.94556°N 85.24556°W / 34.94556; -85.24556 (34.945683, -85.245653). It is 9 miles (14 km) south of Chattanooga, Tennessee, by U.S. Route 27, which next leads south 18 miles (29 km) to LaFayette, Georgia. The Chickamauga and Chattanooga National Military Park takes in the works the southern two-thirds of the city’s area.

According to the United States Census Bureau, the city has a total area of 13.9 square miles (36.0 km), all land.