Colin Mackenzie (born 1754, Stornoway, Scotland, died 1821, Calcutta (India) Colonel and surveyor in the British Raj, also an art collector and orientalist. Mackenzie produced many of the first accurate maps of the India, and his research and collections contributed significantly to the field of Asian studies.

Colin Mackenzie was born in Stornoway, on Scotland's Isle of Lewis. He began his career as a customs officer in Stornaway, but at age 28, joined the British East India Company as an officer in the engineers. In 1799, he was part of the British force in the battle of Srirangapatna, where Tipu Sultan, Maharaja of Mysore was defeated by the British. He led the Mysore survey between 1800 and 1810. The survey consisted of a team of draftsmen and illustrators who collected material on the natural history, geography, architecture, history, customs, and folk tales of the region.

He later spent two years in Java, during the period of British occupation during the Napoleonic Wars.

He used his military career and salary to support his research into the history, religion, philosophy, ethnology, folklore, art, and mathematics of India and Java. He hired learned Brahmins to assist him with surveys and translations of manuscripts. He researched Indian mathematics and India's system of logarithms. MacKenzie later wrote a biography of John Napier, the inventor of natural logarithms.

He died in 1821 in Kolkata, where he is buried. Much of his collection of documents, manuscripts, artifacts, and artworks are now in the British Museum and the Oriental and India Office Collections of the British Library.