This is a complete list of Canadian Football League (CFL) retired numbers.
Ironically, the two youngest franchises, the BC Lions and Montreal Alouettes, have retired the most numbers with 10 and 11, respectively.
The oldest continuous franchise in the league, the Toronto Argonauts, has the second fewest with four retired numbers.
No player has had his number retired by multiple teams and, unlike Major League Baseball (who retired Jackie Robinson's number), the National Basketball Association (Bill Russell), and the National Hockey League (Wayne Gretzky), the CFL has never had a jersey number retired in favour of one player league-wide.
Due to their short existence, none of the American-based CFL teams ever retired jersey numbers.