1963 Detroit Lions season

The 1963 Detroit Lions season marked the thirtieth year of the National Football League (NFL) franchise in Detroit and 34th overall.

It was national news in April when NFL Commissioner Pete Rozelle indefinitely suspended two future Hall of Famers, Lions defensive tackle Alex Karras and Packers' halfback Paul Hornung for placing bets on NFL teams. Five other Lions players were fined $2,000 each for betting on games that they did not play in. The Lions franchise was additionally fined $2,000 each on two counts for failure to report information promptly and for lack of sideline supervision. The gambling controversy proved to be an ongoing distraction throughout the season.

Things became lighthearted in August, when gonzo sports journalist George Plimpton endured the Lions' training camp process as an ostensible backup quarterback, going so far as to run a very unsuccessful series of downs in practice, to generate a story for the telling. Plimpton's 1963 training camp experience would culminate in a 1965 best-selling book, Paper Lion.

On Thanksgiving Day in Detroit, the Lions met the Packers for the thirteenth consecutive season. The game ended in a tie, the first for the Packers in five years, and it was the end of the holiday series for Green Bay. Their visit to Tiger Stadium the following year was on a Monday night in late September, and the visiting opponent for Thanksgiving was rotated, starting with the Chicago Bears.