The Battle of Hamburger Hill (13–20 May 1969) was a battle of the Vietnam War that was fought by US Army and Army of the Republic of Vietnam (ARVN) forces against People's Army of Vietnam (PAVN) forces during Operation Apache Snow. Though the heavily-fortified Hill 937, a ridge of the mountain Dong Ap Bia in central Vietnam near its western border with Laos, had little strategic value, US command ordered its capture by a frontal assault, only to abandon it soon thereafter. The action caused a controversy both in the American military and public.

The battle was primarily an infantry engagement, with the US Airborne troops moving up the steeply sloped hill against well-entrenched troops. Attacks were repeatedly repelled by the PAVN defenses. Bad weather also hindered operations. Nevertheless, the Airborne troops took the hill through direct assault, causing extensive casualties to the PAVN forces.