Henderson Hall is a military installation of the United States Marine Corps (USMC) located in Arlington County, Virginia, near the Pentagon, on the southern edge of the Arlington National Cemetery and next to Fort Myer. Currently, it is part of Joint Base Myer–Henderson Hall. Henderson Hall is named for Brevet Brigadier General Archibald Henderson, the fifth and longest-serving Commandant of the Marine Corps.

Fort Myer is the previous name used for a U.S. Army post next to Arlington National Cemetery in Arlington County, Virginia, and across the Potomac River from Washington, D.C. Founded during the American Civil War as Fort Cass and Fort Whipple, the post merged in 2005 with the neighboring Marine Corps installation, Henderson Hall, and is today named Joint Base Myer–Henderson Hall.