The 2020–21 Lietuvos krepšinio lyga, also called Betsafe-LKL for sponsorship reasons, was the 28th season of the top-tier level professional basketball league of Lithuania, the Lietuvos krepšinio lyga (LKL).

Žalgiris achieved their 23rd title overall, eleven consecutive.

[1] During the regular season, all teams play 36 games.

The top eight teams in the regular season standings, after playing their entire 36 game schedule, qualified for the playoffs in the quarterfinals, that was played in a best-of-three games format.

Ten teams were granted licences for the 2020–21 LKL season.