The final was held at Estadio de La Cartuja in Seville on 6 April 2024, between Athletic Bilbao and Mallorca.
[1] Following a 1–1 draw, Athletic Bilbao won the match 4–2 on penalties, securing a 25th Copa del Rey title and their first since 1984.
In the summer of 2023, the RFEF released the calendar of the competition and confirmed the format of the previous season would remain.
[4] The first round was played by 110 of the 115 qualified teams, with the exceptions being the four participants of the 2024 Supercopa de España, and the Primera RFEF champions.
[5] The second round was played by 56 teams, with the four participants of the 2023–24 Supercopa de España having a bye.
The draw for the round of 32 was held on 12 December 2023 in the RFEF headquarters in Las Rozas.
The draw for the round of 16 was held on 8 January 2024 in the RFEF headquarters in Las Rozas.
The draw for the quarter-finals was held on 19 January 2024, 13:00 UTC+1 CET, in the RFEF headquarters in Las Rozas.
The draw for the semi-finals was held on 26 January 2024, 13:00 UTC+1 CET, in the RFEF headquarters in Las Rozas.