Spanish football rivalries

There are several notable football rivalries in Spain. The most popular rivalry is El Clásico.
Club Football.
Major Rivalries.
Real Madrid vs Atletico Madrid (Madrid Derby).
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Barcelona vs Atletico Madrid (El Otro Clásico).
The rivalry between FC Barcelona and Atletico Madrid (commonly known as El Otro Clásico) was first played back in 1921.
International Football.
Spain vs Portugal (The Iberian Derby).
The rivalry between Spain and Portugal is one of the oldest national football rivalries. Their first game was played in 1921 (Spain 3-1 Portugal, Friendly). They have played 37 games against each other. The most recent game was a 0-0 draw on October 7, 2020. The top scorer in the rivalry is Isidro Lángara with 9 goals, including 5 goals in Spain's 9-0 win during 1934 FIFA World Cup qualification.
Spain vs Italy (The Mediterranean Derby).
The rivalry between Spain and Italy has been ongoing since their first meeting in 1920 (Spain 2-0 Italy, 1920 Olympics). They have played each other 38 times in total, with the latest match being a 2-1 win for Spain during the 2021 UEFA Nations League Finals