Alexander Cunningham, aide-de-camp to Lord Auckland, (1836-1840): An aide-de-camp (or; French expression meaning literally helper in the (military) camp) is a personal assistant or secretary to a person of high rank, usually a senior military or government officer, a member of a royal family, or a head of state.

Sir Alexander Cunningham KCIE CSI (23 January 1814 – 28 November 1893) was a British army engineer with the Bengal Engineer Group who later took an interest in the history and archaeology of India. In 1861 he was appointed to the newly created position of archaeological surveyor to the government of India; and he founded and organised what later became the Archaeological Survey of India. He wrote numerous books and monographs and made extensive collections of artefacts. Some of his collections were lost, but most of the gold and silver coins and a fine group of Buddhist sculptures and jewellery were bought by the British Museum in 1894.