Air Vice-Marshal Leslie William Cannon, CB, CBE (9 April 1904 – 27 January 1986) was a senior Royal Air Force officer.

He served as Commander-in-Chief of the Royal Pakistan Air Force from 1951 to 1955.

Cannon enlisted in the Royal Air Force (RAF) in the second entry of aircraft apprentices in 1920, and was commissioned as a pilot in 1925.

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