The 2019–20 La Liga season, also known as La Liga Santander due to sponsorship reasons with Santander, was the 89th since its establishment. Real Madrid won the La Liga title for a record 34th time at the end of the season. Barcelona were the two-time defending champions after winning La Liga last season for the 26th time. Osasuna, Granada and Mallorca joined as the promoted clubs from the 2018–19 Segunda División. They replaced Rayo Vallecano, Huesca and Girona, who were relegated to the 2019–20 Segunda División. On 12 March 2020, the league and the Segunda División were suspended for at least two weeks due to the COVID-19 pandemic. The league was suspended indefinitely on 23 March. The season recommenced on 11 June, with matches being played every day until 13 July, while all games in the penultimate round were played on 16 July and last round on 19 July. On 16 July, Real Madrid won the league for a record 34th time with one match remaining, after defeating Villarreal 2–1.
A total of 20 teams contested the league, including 17 sides from the 2018–19 season and three promoted from the 2018–19 Segunda División. This included the two top teams from the Segunda División, and the winners of the play-offs. ;Teams relegated to Segunda Division The first team to be relegated from La Liga were Rayo Vallecano. Their relegation was ensured on 5 May 2019, after Valladolid beat Athletic Bilbao 1−0, suffering an immediate return to the Segunda División. The second team to be relegated were Huesca, who were also relegated on 5 May 2019 after a 2−6 home defeat to Valencia, also suffering an immediate return to the second tier. The third and final relegated club were Girona, who concluded their two-year stay in La Liga in a 1−2 away loss at Alavés on 18 May 2019. ;Teams promoted from Segunda División On 20 May 2019, Osasuna were the first to be promoted, after a two-year absence, following Granada's 1−0 win against Albacete. The second team to earn promotion was Granada after their 1−1 draw against Mallorca on 4 June 2019. This marked an end to a two-year absence in the first division. The third and final team to earn promotion to La Liga was play-offs winner Mallorca, after coming back from a 2-goal deficit against Deportivo La Coruña on 23 June 2019. Mallorca returned after a six-year absence from Spain's top flight, spending one of those years in the Segunda División B and achieving two consecutive promotions.
The Zamora Trophy is awarded by newspaper Marca to the goalkeeper with the lowest goals-to-games ratio. A goalkeeper has to have played at least 28 games of 60 or more minutes to be eligible for the trophy.
Discipline{{Cite web|url=https://www.laliga.com/en-ES/leaderboard/all-leaders?stat_competition=laliga-santander&stat=total_yellow_card_ranking|title=Leaderboard Yellow Cards Liga de Fútbol Profesional |website=La Liga}}{{Cite web|url=https://www.laliga.com/en-ES/leaderboard/all-leaders?stat_competition=laliga-santander&stat=total_red_card_ranking|title=Leaderboard Red Cards Liga de Fútbol Profesional |website=La Liga}}{{Cite web|url=https://www.laliga.com/en-ES/stats|title=Generals Liga de Fútbol Profesional |website=La Liga}}
On 15 April 2019, Puma announced their official partnership with La Liga to manufacture the official match ball for the Liga de Fútbol Profesional. This ended La Liga's 23-year partnership with Nike.
Average attendances
Matches played under closed doors are not included in the table.