The 1963–64 Greek Football Cup was the 22nd edition of the Greek Football Cup. The final was scratched and AEK Athens were awarded the cup after Panathinaikos and Olympiacos were ejected from the competition following the abandonment of their semi-final in the 115th minute with the score 1–1 due to riots by supporters from both teams, who believed the match had been fixed to end in a draw in order to have a replay for financial reasons (this was the same reason that the final of 1961–62 was abandoned and the cup withheld).

Calendar

From Round of 32 onwards:

Knockout phase

In the knockout phase, teams play against each other over a single match. If the match ends up as a draw, extra time will be played and if the match remains a draw a replay match is set at the home of the guest team which the extra time rule stands as well. If a winner doesn't occur after the replay match the winner emerges by a flip of a coin. The mechanism of the draws for each round is as follows:

Bracket

Round of 32

Round of 16

Quarter-finals

Semi-finals

Final

The Final was scratched and AEK Athens were awarded the Cup after Panathinaikos and Olympiacos were ejected from the competition.