The Copa del Rey 1979-1980 is the 76th staging of the Spanish Cup. The competition began on September 12, 1979 and ended on June 4, 1980 with the final.

The Copa del Rey (English: King's Cup) is an annual football cup competition for Spanish football teams. Its full name is Campeonato de España – Copa de Su Majestad el Rey de Fútbol (Championship of Spain – His Majesty the King's Football Cup).

The competition was founded in 1903, thus making it the oldest Spanish football competition. The current holder is Barcelona. The 2011–12 final was at Estadio Vicente Calderon between Athletic Bilbao 0-3 FC Barcelona. Typically, the winner of Copa del Rey goes to the UEFA Europa League; should one of the finalists have already qualified for European competition then the other finalist goes into the Europa League. FC Barcelona has won the cup on the most occasions, with 26 wins.

In 1902, a competition under the name Copa de la Coronación, was first played after Carlos Padrós, later president of Real Madrid, suggested a football tournament to celebrate the coronation of King Alfonso XIII. Four other teams joined Madrid FC for the competition: FC Barcelona, Club Español de Foot-Ball, New Foot-Ball de Madrid and Club Bizcaya (a team made up of players from Athletic Club and Bilbao FC) which eventually defeated Barcelona in the final. That cup is on display in the Athletic Bilbao museum and the club includes the victory in its honours list. Nevertheless, it is considered only the forerunner of the Copa del Rey and the Royal Spanish Football Federation officially don't recognize it.

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Mario Alberto Kempes Chiodi (born 15 July 1954 in Bell Ville, Córdoba) is a retired Argentine footballer. His father, Mario, also a footballer, inspired him to play from a young age. At the age of 7, he began playing with a junior team and at 14, he joined the Talleres reserves. He is most notable for playing for Valencia and being the focal point of Argentina's 1978 World Cup win.

Kempes was nicknamed El Toro and El Matador. During his first stint with Valencia, he won two consecutive Pichichis, scoring 24 and 28 goals in 1976–77 and 1977–78. His career started at local club Instituto, where he played alongside Osvaldo Ardiles before quickly moving on to Rosario Central, where he scored 85 goals in 105 matches and established himself as a notorious goalscorer, which prompted a move to Valencia, where he would go on to win the Copa del Rey, the European Cup Winners' Cup and the UEFA Super Cup. Famous as a hard-working forward, he used to strike from outside the penalty area with his surging runs goalwards and was not the traditional center-forward operating solely inside the box. Many defenders found difficulty handling his attacking style.

Vicente del Bosque González, 1st Marquis of Del Bosque (Spanish pronunciation: [biˈθente ðel ˈβoske ɣonˈθaleθ]; born 23 December 1950) is a former Spanish footballer. He is currently the manager of the Spanish national football team. After taking over from Luis Aragonés who had led Spain to European success in Euro 2008, Del Bosque went on to manage the national team to the conquest of their first-ever World Cup in 2010. Del Bosque is also known for having coached Real Madrid from 1999 to 2003, the most successful period in the club's modern era. He has worked for many years with assistant coach Toni Grande. Along with Italian Marcello Lippi, they are the only football managers who have won both the UEFA Champions League and the World Cup.

As a player, Del Bosque was a midfielder who played in La Liga 441 times with 30 goals. This career included spells at Castilla CF, Córdoba, Castellón, and Real Madrid. He won five league titles (1974–75, 1975–76, 1977–78, 1978–79, 1979–80) and four Copa del Rey titles (1973–74, 1974–75, 1979–80, 1981–82) with Real Madrid.