The killing caves of Phnom Sampeau are a Khmer Rouge execution site on Phnom Sampeau, a hill 7 mi (11 km) southwest of Battambang in western Cambodia. The Khmer Rouge killed their victims on top of the cave at the rim of a daylight shaft or ceiling hole and then threw the dead body into the cave. Men and women were placed in separate caves and clothes in another.
There are a number of caves at Phnom Sampeau (Sampeau Hill) that have traditionally served as Buddhist temples. Today there is a large glass memorial in the cave next to the skulls and bones and a golden reclining Buddha, that can be reached via a staircase. A memorial, assembled from cyclone fencing and chicken wire contains human bones at the base of the stairway.