The 2020 Ettan, part of the 2020 Swedish football season is the 15th season of Sweden's third-tier football league in its current format.
The season started on 14 June 2020 and ended on 29 November 2020.
32 teams contest the league divided into two divisions, Norra and Södra.
22 returning from the 2019 season, three relegated from Superettan and seven promoted from Division 2.
Västra Frölunda IF won on away goals but were not promoted, having fielded a suspended player.