Chittoor, city, southern Andhra Pradesh state, southern India. It is situated in an upland region near a tributary of the Palar River, about 35 miles (55 km) southwest of Tirupati and 80 miles (130 km) west-northwest of Chennai (Madras) in Tamil Nadu state.

Chittoor is a transportation hub, with a north-south rail line and east-west road connections to Chennai and Bengaluru (Bangalore) to the west in Karnataka state. The city is also a trade centre; rice and oilseed milling are important industries. Indian steatite (soapstone) is mined in the nearby hills. The surrounding area is composed mainly of the Chittoor Basin along the course of the Penneru River in the vicinity of the mountains near Kadapa (Cuddapah). Natural resources are poor, and the only agricultural products of note are grain sorghum, peanuts (groundnuts), and bajra (pearl millet). Pop. (2001) 152,654; (2011) 153,756.