The 1966 CFL season was the Canadian Football League's ninth season since the 1958 merger of the Interprovincial Rugby Football Union and the Western Interprovincial Football Union to create a national league. It was the 13th season in modern-day Canadian football.

CFL news in 1966

The Canadian Football League made several rule changes. The league started to legalize unlimited blocking on rushing plays and introduced their new goose-necked goal posts. The league rewrote its rule book and reduced it in size. The Canadian Rugby Union, owners of the trophy, granted trusteeship of the Grey Cup to the Canadian Football League in exchange for annual financial support for amateur football. One of the more notable games of the regular season was Montreal's 1–0 victory over Ottawa, the lowest scoring game in CFL history, and only the second 1–0 game since a 1949 win by Winnipeg over Calgary in the WIFU.

Regular season standings

Note: GP = Games Played, W = Wins, L = Losses, T = Ties, PF = Points For, PA = Points Against, Pts = Points

Grey Cup playoffs

Note: All dates in 1966

Conference semi-finals

Conference finals

Playoff bracket

Grey Cup Championship

CFL Leaders

1966 CFL All-Stars

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1966 Eastern All-Stars

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1966 Western All-Stars

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1966 CFL Awards