Sir Walter Elliot, KCSI (16 January 1803 – 1 March 1887) was a British civil servant in colonial India. He was also an eminent orientalist, linguist, archaeologist, naturalist and ethnologist who worked mainly in the Presidency of Madras. Born in Edinburgh, he studied at the East India Company College at Haileybury and joined the East India Company's civil service at Madras in 1820 and worked on until 1860. He was invested Knight Commander of the Order of the Star of India (KCSI) in 1866.