Nandyal or Nandyala (Telugu: ) is a town in Kurnool District, Andhra Pradesh, India. It is a major centre of trade, commerce, education and industries in the region and is also important because of its religious significance and Rich water resources.
The town derives its name from Nandi, the vehicle of Shiva, whose temple here draws pilgrims from faraway places. It had a population of 151,771 at the time of the 2001 Census. Nandyal is surrounded on all sides by hills while the Kundu River flows to its west. The Nallamala Hills to the east are extensively forested while the ones to the south have been mined for granite. The town is rich in water resources owing to its many tanks and reservoirs. These give it an equitable climate throughout the year. However summers can be particularly hot. The average temperature is around 28 C.