Major Sir Desmond Morton KCB CMG MC (1891–1971) was a British military officer and government official. Morton played an important role in organizing a response to appeasement of Germany under Adolf Hitler during the period prior to World War II by providing intelligence information about German re-armament to Winston Churchill. At this time Churchill did not have any position in the government. In 1940 Morton was Churchill's personal assistant when he became prime minister.
Morton joined the Royal Artillery in 1911. He saw action in World War I, and was shot in the heart at the Battle of Arras in 1917. However, he survived and recovered, serving again with the bullet still inside. He served as aide de camp to Sir Douglas Haig, commander of the British Expeditionary Force from 1917 to 1918.
He was seconded to the Foreign Office in 1919 where he was head of the Secret Intelligence Service's Section V, dealing with counter-Bolshevism in the mid 1920s, and was Head of the Industrial Intelligence Centre of the Committee of Imperial Defence from 1929 to 1939, responsible for providing intelligence on the plans and capabilities for manufacturing munitions in other countries. From 1930 to 1939 he was also a member of the CID sub-committee on Economic Warfare.
In 1939, he became the Principal Assistant Secretary at the Ministry of Economic Warfare, and became Churchill's Personal Assistant in 1940. He served on the Economic Survey Mission to the Middle East in 1949, and served in the Ministry of Civil Aviation from 1950 to 1953.
He was awarded the Military Cross in 1917, and a knighthood in 1945. Morton was portrayed by Jim Broadbent in the 2002 film The Gathering Storm.