Air Marshal Sir Richard Carlyle Nelson, KCB, OBE, CStJ, QHP (November 13, 1907 – November 5, 2001) was a Canadian-born senior Royal Air Force officer who acted as Director-General of the RAF Medical Services from 1962 to 1967 and Honorary Physician to the Queen from 1961 until 1967.

He graduated from the University of Alberta with his MD and, In the 1930s, moved to the UK, where in 1934, he joined the RAF.

When the RAF established a field hospital at Fuka in the Western Desert, he was the senior medical Flight Lieutenant in the Middle East and was appointed to command it.

During Nelson's tenure as Air Vice-Marshal, he was made Honorary Physician to the Queen (QHP) in 1961.

His final promotion in 1962 made him an Air-Marshal as Director-General of the RAF medical services, a post which he held until his military retirement in 1967.