The entire season's games were cancelled as a result of the 2004–05 NHL lockout.
[4] Key dates prior to the start of the season: The Maple Leafs preseason and regular season schedules were announced on July 14, 2004.
[7] The Maple Leafs were involved in the following transactions from June 8, 2004, the day after the deciding game of the 2004 Stanley Cup Finals, through February 16, 2005, the day the 2004–05 season was officially cancelled.
[9] The Maple Leafs did not make any trades.
The 2004 NHL entry draft was the 42nd NHL entry draft.