The 2020 Superettan was part of the 2020 Swedish football season, and the 21st season of Superettan, Sweden's second-tier football division in its current format. A total of 16 teams contest the league.
A total of 16 teams contest the league. The top two teams qualify directly for promotion to Allsvenskan, the third will enter a play-off for the chance of promotion. The two bottom teams are automatically relegated, while the 13th and 14th placed teams will compete in a play-off to determine whether they are relegated.
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The 13th-placed and 14th-placed teams of Superettan met the two runners-up from 2020 Division 1 (Norra and Södra) in two-legged ties on a home-and-away basis with the teams from Superettan finishing at home.
Landskrona BoIS won 3âÂÂ1 on aggregate.
2âÂÂ2 on aggregate. Trelleborgs FF won 4âÂÂ1 on penalties.