1939–40 Greek Football Cup

The 1939–40 Greek Football Cup was the fourth edition of the Greek Football Cup. The competition culminated with the Greek Cup Final, held at Leoforos Alexandras Stadium, on 2 June 1940. The match was contested by Panathinaikos and Aris, with Panathinaikos winning by 3–1.

First round

 * colspan="3" style="background-color:#D0D0D0" align=center|Athens Football Clubs Association
 * colspan="3" style="background-color:#D0D0D0" align=center|Athens Football Clubs Association


 * colspan="3" style="background-color:#D0D0D0" align=center|Piraeus Football Clubs Association
 * colspan="3" style="background-color:#D0D0D0" align=center|Piraeus Football Clubs Association


 * colspan="3" style="background-color:#D0D0D0" align=center|Macedonia Football Clubs Association
 * colspan="3" style="background-color:#D0D0D0" align=center|Macedonia Football Clubs Association


 * colspan="3" style="background-color:#D0D0D0" align=center|Patras Football Clubs Association
 * colspan="3" style="background-color:#D0D0D0" align=center|Patras Football Clubs Association


 * colspan="3" style="background-color:#D0D0D0" align=center|Thessaly Football Clubs Association
 * colspan="3" style="background-color:#D0D0D0" align=center|Thessaly Football Clubs Association


 * colspan="3" style="background-color:#D0D0D0" align=center|Crete Football Clubs Association
 * colspan="3" style="background-color:#D0D0D0" align=center|Crete Football Clubs Association


 * colspan="3" style="background-color:#D0D0D0" align=center|Central-Eastern Macedonia Football Clubs Association
 * colspan="3" style="background-color:#D0D0D0" align=center|Central-Eastern Macedonia Football Clubs Association


 * colspan="3" style="background-color:#D0D0D0" align=center|Thrace Football Clubs Association
 * colspan="3" style="background-color:#D0D0D0" align=center|Thrace Football Clubs Association


 * }


 * The match was suspended at the 70th minute due to player incidends. That remained as the final score

Second round

 * colspan="3" style="background-color:#D0D0D0" align=center|Athens Football Clubs Association
 * colspan="3" style="background-color:#D0D0D0" align=center|Athens Football Clubs Association


 * colspan="3" style="background-color:#D0D0D0" align=center|Piraeus Football Clubs Association
 * colspan="3" style="background-color:#D0D0D0" align=center|Piraeus Football Clubs Association


 * colspan="3" style="background-color:#D0D0D0" align=center|Macedonia Football Clubs Association
 * colspan="3" style="background-color:#D0D0D0" align=center|Macedonia Football Clubs Association


 * colspan="3" style="background-color:#D0D0D0" align=center|Patras Football Clubs Association
 * colspan="3" style="background-color:#D0D0D0" align=center|Patras Football Clubs Association


 * colspan="3" style="background-color:#D0D0D0" align=center|Thessaly Football Clubs Association
 * colspan="3" style="background-color:#D0D0D0" align=center|Thessaly Football Clubs Association


 * colspan="3" style="background-color:#D0D0D0" align=center|Crete Football Clubs Association
 * colspan="3" style="background-color:#D0D0D0" align=center|Crete Football Clubs Association


 * colspan="3" style="background-color:#D0D0D0" align=center|Central-Eastern Macedonia Football Clubs Association
 * colspan="3" style="background-color:#D0D0D0" align=center|Central-Eastern Macedonia Football Clubs Association


 * colspan="3" style="background-color:#D0D0D0" align=center|Thrace Football Clubs Association
 * colspan="3" style="background-color:#D0D0D0" align=center|Thrace Football Clubs Association


 * }


 * Apollon Volos won 1–2 after extra time but Niki Volos put an objection for illegal use of a player of Apollon and was awarded the match.

Third round

 * colspan="3" style="background-color:#D0D0D0" align=center|Athens Football Clubs Association
 * colspan="3" style="background-color:#D0D0D0" align=center|Athens Football Clubs Association


 * colspan="3" style="background-color:#D0D0D0" align=center|Piraeus Football Clubs Association
 * colspan="3" style="background-color:#D0D0D0" align=center|Piraeus Football Clubs Association


 * colspan="3" style="background-color:#D0D0D0" align=center|Macedonia Football Clubs Association
 * colspan="3" style="background-color:#D0D0D0" align=center|Macedonia Football Clubs Association


 * colspan="3" style="background-color:#D0D0D0" align=center|Patras Football Clubs Association
 * colspan="3" style="background-color:#D0D0D0" align=center|Patras Football Clubs Association


 * colspan="3" style="background-color:#D0D0D0" align=center|Thessaly Football Clubs Association
 * colspan="3" style="background-color:#D0D0D0" align=center|Thessaly Football Clubs Association


 * colspan="3" style="background-color:#D0D0D0" align=center|Thrace/Central-Eastern Macedonia Football Clubs Association
 * colspan="3" style="background-color:#D0D0D0" align=center|Thrace/Central-Eastern Macedonia Football Clubs Association


 * }

Fourth round

 * colspan="3" style="background-color:#D0D0D0" align=center|Athens Football Clubs Association
 * colspan="3" style="background-color:#D0D0D0" align=center|Athens Football Clubs Association


 * colspan="3" style="background-color:#D0D0D0" align=center|Piraeus Football Clubs Association
 * colspan="3" style="background-color:#D0D0D0" align=center|Piraeus Football Clubs Association


 * colspan="3" style="background-color:#D0D0D0" align=center|Macedonia Football Clubs Association
 * colspan="3" style="background-color:#D0D0D0" align=center|Macedonia Football Clubs Association


 * colspan="3" style="background-color:#D0D0D0" align=center|Patras Football Clubs Association
 * colspan="3" style="background-color:#D0D0D0" align=center|Patras Football Clubs Association


 * colspan="3" style="background-color:#D0D0D0" align=center|Thessaly Football Clubs Association
 * colspan="3" style="background-color:#D0D0D0" align=center|Thessaly Football Clubs Association


 * }

Fifth round

 * colspan="5" style="background-color:#D0D0D0" align=center|Athens Football Clubs Association
 * colspan="2" rowspan="2" N/A
 * colspan="2" rowspan="2" N/A


 * colspan="5" style="background-color:#D0D0D0" align=center|Piraeus Football Clubs Association
 * colspan="5" style="background-color:#D0D0D0" align=center|Piraeus Football Clubs Association


 * }

Sixth round

 * colspan="3" style="background-color:#D0D0D0" align=center|Athens Football Clubs Association
 * colspan="3" style="background-color:#D0D0D0" align=center|Athens Football Clubs Association


 * }

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. That procedure will be repeated until a winner occurs. The mechanism of the draws for each round is as follows: The seeded teams are drawn against the unseeded teams.
 * In the draw for the round of 16, the eight top teams of each association are seeded and the eight clubs that passed the qualification round are unseeded.
 * In the draws for the quarter-finals onwards, there are no seedings, and teams from the same group can be drawn against each other.

Round of 16

 * colspan="2" rowspan="2" N/A


 * colspan="2" rowspan="5" N/A


 * }

Quarter-finals

 * colspan="2" N/A


 * colspan="2" N/A
 * }

Semi-finals

 * colspan="3" N/A


 * }

Final
The 4th Greek Cup Final was played at the Leoforos Alexandras Stadium.