The1983–84 Greek Football Cup was the 42nd edition of theGreek Football Cup.

Totally 76 teams participated, 16 fromAlpha Ethniki, 20 fromBeta, and 40 fromGamma. It was held in 7 rounds, included final. An additional round was held between first and second, with 6 matches, in order that the teams would continue to be 32. Concerning the previous years, there are single matches only in the first round.

The third round was the most interesting phase of competition. The winners ofprevious season,AEK Athens were eliminated byAEL.Iraklis qualified for second possessed year againstAris. Also,Ethnikos Piraeus qualifiedafter 44 years againstOlympiacos inPiraeus derby, with two draws by 0–0 and 1–1, respectively. It's remarkable that, while both matches had become inKaraiskakis Stadium, the common home of two clubs, Ethnikos was formally away team in the second leg, so they qualified withaway goals rule.AEL's win against Achaiki in the Second Round was impressive (10-0, 5 goals byMichalis Ziogas).

The final was contested byPanathinaikos and AEL, such as2 years before. The match was held atAthens Olympic Stadium. Panathinaikos won 2–0,^[1][2] achieving thedouble for that season. The match was the last one for Panathinaikos' captain,Anthimos Kapsis. There were 73,829 spectators, a record attendance for a Greek Cup Final.

Each tie in theknockout phase, apart from the first two rounds and the final, was played overtwo legs, with each team playing one leg at home. The team that scored more goals on aggregate over the two legs advanced to the next round. If the aggregate score was level, theaway goals rule was applied, i.e. the team that scored more goals away from home over the two legs advanced. If away goals were also equal, thenextra time was played. The away goals rule was again applied after extra time, i.e. if there were goals scored during extra time and the aggregate score was still level, the visiting team advanced by virtue of more away goals scored. If no goals were scored during extra time, the winners were decided by apenalty shoot-out. In the first two rounds and the final, which were played as a single match, if the score was level at the end of normal time, extra time was played, followed by a penalty shoot-out if the score was still level.
The mechanism of the draws for each round is as follows:

• There are no seedings, and teams from the same group can be drawn against each other.

• Greek Cup 1983-84 at RSSSF

• Greek Football Cup seasons
• 1983–84 European domestic association football cups
• 1983–84 in Greek football

• CS1 Greek-language sources (el)
• Articles with short description
• Short description is different from Wikidata