The 2020–21 Segona Divisió, also known as Lliga UNIDA,[1] was the 22nd season of second-tier football in Andorra.
Due to the COVID-19 pandemic in Andorra, the season was delayed to potentially begin on 8 November 2020.
[3] Penya Encarnada won the league the previous season, and were promoted to the Primera Divisió.
[5] Jenlai returned to the league after not participating the previous season.
The seventh-placed team (third-placed in the relegation round) from the 2020–21 Primera Divisió and the runners-up from the 2020–21 Segona Divisió played in a two-legged play-off for one place in the 2021–22 Primera Divisió.