The 2005 Canadian Mixed Curling Championship was held November 21–28, 2004 at the in Prince Albert, Saskatchewan. The 2005 Mixed was the 2nd Canadian Mixed Championship to be held in the 2004 calendar year, as the Canadian Curling Association moved the event from the Spring to the Fall. The Mixed has been held in the Fall ever since, and has been referred to the following calendar year ever since. The event also changed playoff formats, moving from the page playoff system to a 3-team playoff.