The 51st Grey Cup took place on November 30, 1963, at Empire Stadium in Vancouver, British Columbia, and decided the Canadian Football League (CFL) champion for the 1963 season. The Hamilton Tiger-Cats battled the BC Lions, in front of 36,545 spectators.

The game is best remembered for a controversial sequence involving American players Angelo Mosca and Willie Fleming. Mosca was accused of kicking Fleming's head while the latter laid on the field. Fleming would leave the game, leading to a long-standing grudge between alumni of both teams.