Nellore district, officially known as Sri Potti Sriramulu Nellore district or simply SPS Nellore district in Coastal Andhra Region, is one of the 26 districts in the Indian state of Andhra Pradesh. According to the 2011 Census, the district's population was 2,469,712 of which 29.07% was urban. Its administrative headquarters are located in Nellore city. Located in the Coastal Andhra region, the district is bordered by the Bay of Bengal to the east, Kadapa district and Annamayya district to the west, Prakasam district to the north, and Tirupati district to the south.
The name of the district is derived from the name of the district headquarters, Nellore. The City was known asVikrama Simhapuri until the 13th century, when it became known as Nellore. The name Nellore originates from a mythological story from the Sthala Puranas which depict a lingam in the form of a stone under an amla, or nelli, tree in Nellore. The place gradually became Nelli-ooru (nelli referring to the amla tree and ooru referring to a place in the Telugu language) and then present-day Nellore.
The official name of Nellore was changed to Sri Potti Sriramulu Nellore District (SPS Nellore) on 4 June 2008, in honour of the Indian revolutionary Potti Sri Ramulu, who died fasting in an attempt to achieve the formation of a separate state for the Telugu people, which would later become Andhra Pradesh.
After the fall of the Vijayanagara Empire, the area was ruled by the Nawabs. During the eighteenth century, Nellore saw wars between Najeebullah, the ruler of the area, and his brother Arcot Nawab, who received support from the British and French. Nawab's army, under the command of colonel Caillaud, took over the Nellore fort in 1762. For the purposes of revenue collection, the town of Nellore and the surrounding district were handed over to the British East India Company in 1781 and 1801, respectively. Nellore was named the revenue unit for the district.
In 1970, the northern parts of Nellore district were transferred to the newly-created Prakasam district.