The Bactria–Margiana Archaeological Complex (BMAC) is the modern archaeological designation for a particular Middle Bronze Age civilisation of southern Central Asia, also known as the Oxus Civilization. The civilisation's urban phase or Integration Era was dated in 2010 by Sandro Salvatori to c. 2400–1950 BC, but a different view is held by Nadezhda A. Dubova and Bertille Lyonnet, c. 2250–1700 BC.
Though it may be called the "Oxus civilization", apparently centred on the upper Amu Darya (Oxus River) in Bactria, most of the BMAC's urban sites are located in Margiana (now Turkmenistan) on the Marghab delta, and in the Kopet Dagh range. There are a few later (c. 1950–1450 BC) sites in northern Bactria, today southern Uzbekistan, but they are mostly graveyards belonging to the BMAC-related Sapalli culture. A single BMAC site, known as Dashli, lies in southern Bactria, current territory of northern Afghanistan. Sites found further east, in southwestern Tajikistan, though contemporary with the main BMAC sites in Margiana, are only graveyards, with no urban developments associated with them.