The 1984 Copa de la Liga was the second edition of Copa de la Liga. The competition started on May 4, 1984, and concluded on June 30, 1984. Due to time constraints, saturation and club pressure, the Copa de la Liga only lasted four years since 1982, being cancelled in 1986.
The Copa de la Liga was played by the 18 teams of the 1983-84 La Liga and 3 winners of the 1983 Copa de la Liga of Segunda División, Segunda División B and Tercera División. All rounds were played over two legs. The team that had the higher aggregate score over the two legs progressed to the next round. The 1983-84 Copa del Rey final teams were exempt until the second round.
First leg: 4, 6 and 9 May 1984. Second leg: 13, 15 and 23 May 1984.
First leg: 19 and 20 May 1984. Second leg: 27 and 28 May 1984.
First leg: 2 and 3 June 1984. Second leg: 9 and 10 June 1984.
First leg: 16 June 1984. Second leg: 21 June 1984.