Lieutenant Colonel Robert Leith-Macgregor MC DFC (23 August 1917 – 14 November 2008) was a British Army officer and Royal Air Force pilot. He fought in the Second World War, initially as an infantry officer in the Royal Northumberland Fusiliers, before training as a pilot and transferring to the Royal Air Force. He was shot down several times and eventually became a prisoner of war. Post-war, he returned to the army, serving again with the Royal Northumberland Fusiliers in the Korean War, and later commanding a battalion of that regiment.