The Defense Acquisition University (DAU) is a corporate university of the United States Department of Defense offering "acquisition, technology, and logistics" (AT&L) training to military and Federal civilian staff and Federal contractors. DAU is headquartered in Fort Belvoir, Virginia, and is accredited by the American Council on Education (ACE), International Association for Continuing Education and Training (IACET) and the Council on Occupational Education (COE).

Fort Belvoir is a United States Army installation and a census-designated place (CDP) in Fairfax County, Virginia, United States. It was developed on the site of the former Belvoir plantation, seat of the prominent Fairfax family for whom Fairfax County was named. It was known as Camp A. A. Humphreys from 1917 to 1935 and Fort Belvoir afterward.