Pahiyangala Cave is a cave in the district of Kalutara, Western Province, Sri Lanka, according to a village legend named after the Buddhist monk fa-hien (Wade-Giles: Fa Hsien). However, there is no archeological or historical evidence to support this legend. The cave is important for the human skeletal remains discovered there in the 1960s ,1980s & 2013
The first human burials in the cave were uncovered in 1968 by Dr Siran U. Deraniyagala (of the Sri Lankan government department of archaeology), who returned with an assistant, W. H. Wijepala, in 1988. The main finds consisted of microliths, the remains of ancient fires, and the remains of plants and human beings. Radiocarbon dating indicated that the cave had been occupied from about 33,000 to 4,750 years ago — from the Late Pleistocene to the Middle Holocene. The human remains from the different levels were taken to the Human Biology Laboratory at Cornell University, where they were studied by Dr Kenneth A. R. Kennedy and one of his graduate students, Joanne L. Zahorsky.
The oldest fragments of human bone came from a young child, two older children, a juvenile, and two adults, and showed evidence of being secondary burials: that is, after death, the bodies were exposed, and after decomposition and the predations of scavengers, the bones were placed in graves. The later remains included those of a young child, about 6,850 years old, and a young woman (nicknamed Kalu-Menika by the archaeologists), about 5,400 years old. Both were also secondary burials.