Srisailam is a census town in Nandyal district of the Indian state of Andhra Pradesh. It is the mandal headquarters of Srisailam mandal in Atmakur revenue division. It is located about 160 kilometres (99 mi) from the district headquarters Nandyal, 180 kilometres (112 mi) from Kurnool, and it is located about 264 kilometres (164 mi) from Vijayawada. The town is famous for the Mallikarjuna Jyotirlinga Temple and is one of the holy pilgrimage sites for the Shaivism and Shaktism sects of Hinduism. The town is classified as both a Jyotirlinga and a Shakti pitha.

Nagarjunsagar-Srisailam Tiger Reserve is the largest tiger reserve in India. The reserve spreads over five districts, Nandyal District, Prakasam District, Palnadu District, Nalgonda District and Mahabub Nagar district. The total area of the tiger reserve is 3,728 km2 (1,439 sq mi). The core area of this reserve is 1,200 km2 (460 sq mi). The reservoirs and temples of Srisailam are major attraction for many tourists and pilgrims. It is the largest tiger reserve forest in India and is located inside Nallamala forest area.