The 2004 Canadian Football League season is considered to be the 51st season in modern-day Canadian football, although it is officially the 47th Canadian Football League season.

Neil Payne retired from his position as Director of Officiating in February and was replaced by George Black. Former Eskimos Head Coach, Tom Higgins was named as the 2003 Coach of the Year. CFL Commissioner Tom E. Wright, announced that Vancouver would host the 93rd Grey Cup for 2005. Furthermore, CFL Commissioner Tom E. Wright also announced in late October, that Winnipeg would be the host of the 94th Grey Cup for 2006.

Wayne Smith of Appalachian State University was drafted first overall in the 2004 CFL College Draft by the Hamilton Tiger-Cats. Former player, broadcaster and football administrator, Mike Wadsworth died in April. In September, the Canadian Football Hall of Fame inducted Larry Highbaugh, Cal Murphy, Lui Passaglia, Dan Yochum and Ben Zambiasi during the Induction Weekend ceremonies in Hamilton.

CFL partner, Sun Microsystems added and launched real-time, in-game statistics entry with live play-by-play and scoring on cfl.ca. On June 2, the CFL announced a partnership with FSN and launched a player-based and team-based game for the 2004 season. In addition, the CFL also launched its first ever online kids section called — the Dare CFL KidsZone.

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