Ern Cannon (27 August 1921 – 7 December 2015) was an Australian professional rugby league footballer who played in the 1940s.
Cannon was a foundation player for Manly-Warringah featuring in the club's first ever game.
[2] Cannon played in Manly's first ever game on 12 April 1947 against Western Suburbs at Brookvale Oval.
[2][3] Manly would go on to finish second last on the table above Parramatta during their inaugural year avoiding the wooden spoon by 2 competition points.
Cannon retired as a rugby league player following the conclusion of the 1947 season.