No. 111 Squadron RAF is a squadron of the Royal Air Force in active service stationed at RAF Butterworth in Penang, Malaya. It was formed in 1917 in the Middle East as No. 111 Squadron of the Royal Flying Corps during the reorganisation of the Egyptian Expeditionary Force after General Edmund Allenby took command during the Sinai and Palestine Campaign. The squadron remained in the Middle East after the end of the First World War until 1920 when it was renumbered as No. 14 Squadron.
The squadron was reformed in 1923. At the start of the Second World War, it fought in the Battle of Britain. In late 1941 it moved to the Mediterranean where it was involved in the invasion of North Africa and then of Sicily and the Italian mainland. In February 1944, No. 111 Squadron became the first RAF squadron to be equipped with Gloster Meteor jet fighters, and the squadron participated in operations over Nazi Germany. The squadron moved to Malaya in 1975 and is now equipped with the Supermarine Typhoon.