Sir Robert Archibald Cary, 1st Baronet (25 May 1898 – 1 October 1979) was a British Conservative politician. The son of Robert Cary and Alice Day, he was educated at Ardingly College and at the Royal Military College Sandhurst. Serving to the 4th/7th Royal Dragoon Guards, Cary fought in the First World War and Second World War. From 1939 to 1942, he was Parliamentary Private Secretary to the Civil Lords of the Admiralty, from 1942 to 1945 to the Secretary of State for India and Burma. In 1944 and 1945, he was Assistant Government Whip and Junior Lord of the Treasury between May and July 1945. From 1951 to 1955 he was again Parliamentary Private Secretary, this time to the Lord Privy Seal and Leader of the House of Commons