Cornelius Joseph 'Con' McCormack (25 December 1877 – 8 September 1940) was an Australian rules footballer who played for the Collingwood Football Club in the Victorian Football League (VFL).
A centreman, McCormack was a premiership player in each of his two seasons at Collingwood.
He experienced just three losses from his 31 games and in 1904 moved to Western Australia where he continued his football career.