[2] Paris Saint-Germain were the three-time defending champions, after they were awarded the title for the previous season following the league's cancellation due to the COVID-19 pandemic.

Following a 2–1 win against Angers on the final day of the season, Lille secured a fourth French league title, and their first since 2011.

After the French court had initially ruled that the season would proceed with 22 teams,[4] the relegation of Amiens and Toulouse to the 2020–21 Ligue 2 was confirmed on 23 June 2020, following a vote by the LFP.

The 2020–21 season ended with a relegation play-off between the 18th-placed Ligue 1 team, Nantes, and the winner of the semi-final of the Ligue 2 play-off, Toulouse, on a two-legged confrontation.

Nantes won on away goals and therefore both clubs remained in their respective leagues.