Visakhapatnam, also spelled Vishakhapatnam, also called Vizag, city and port, northeastern Andhra Pradesh state, southern India. It lies on a small embayment of the Bay of Bengal, about 380 miles (610 km) northeast of Chennai in Tamil Nadu state. Visakhapatnam is a major commercial and administrative centre with road, rail, and air connections. Its port is the only protected harbour on the Coromandel Coast, and the city is the headquarters of the Eastern Naval Command of the Indian Navy.

Visakhapatnam’s natural harbour is formed by two promontories, the southern one of which is separated from the city by a small river. Improvements to the harbour have made it capable of accommodating several large ships at a time. The city is also an important shipbuilding centre; the first steamer to be built in India was launched in Visakhapatnam’s harbour in 1948. Manganese, oilseeds, and iron ore are exported at Visakhapatnam, and the city has an oil refinery, a steel plant, and industrial complexes for the production of petrochemicals, fertilizer, sugar, and jute. A medical college and medical museum are in the city. A submarine museum is at Ramakrishna Beach.

The suburb of Waltair, at the north end of the bay, is the site of Andhra University (founded 1926). The area surrounding the suburbs is dominated on the west by the well-forested Eastern Ghats and farther east is drained by numerous rivers, among them the Godavari and the Indravati. The Visakhapatnam Special Economic Zone is a more than 500-acre (200-hectare) free-trade zone at Duvvada, about 15 miles (24 km) southwest of Visakhapatnam, and is connected to the city by train. Pop. (2001) city, 982,904; urban agglom., 1,345,938; (2011) city, 1,237,963; urban agglom., 1,728,128.