2020 Ettan
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.
Teams
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. The champion of each division will qualify directly for promotion to Superettan, while the two runners-up compete in a play-off against the thirteenth and fourteenth teams from Superettan to decide who will play in the 2021 Superettan. The bottom three teams in each division will qualify directly for relegation to Division 2, while the two thirteenth-placed teams play against each other while the top two runners-up from Division 2 play against each other to decide who will play in 2021 Ettan.Norra
| Team | Location | Stadium | Stadium capacity1 |
| Berga | Kalmar | Bergaviks IP | |
| Brommapojkarna | Vällingby | Grimsta IP | 5,000 |
| Frej | Täby kyrkby | Vikingavallen | 2,650 |
| Gefle IF | Gävle | Gavlevallen | 6,500 |
| IFK Haninge | Haninge | Torvalla IP | |
| Karlslunds IF | Örebro | Karlslund Arena | 2,000 |
| IF [Karlstad Fotboll|IF Karlstad] | Karlstad | Tingvalla IP | 10,000 |
| Luleå | Luleå | Skogsvallen | 2,500 |
| Nyköpings BIS | Nyköping | Rosvalla IP | 1,000 |
| Sandvikens IF | Sandviken | Jernvallen | 7,000 |
| Sollentuna FK | Sollentuna | Sollentunavallen | 4,500 |
| Sylvia | Norrköping | Östgötaporten | 17,000 |
| Team TG | Umeå | Umeå Energi Arena | 10,000 |
| Täby | Täby | Tibblevallen | |
| Vasalunds IF | Solna | Skytteholms IP | 4,000 |
| Örebro Syrianska | Örebro | Örnsro IP |
Södra
| Team | Location | Stadium | Stadium capacity1 |
| Assyriska IK | Jönköping | Rosenlunds IP | 1,500 |
| Eskilsminne | Helsingborg | Harlyckans IP | 3,500 |
| Karlskrona | Karlskrona | Västra Mark IP | 4,000 |
| Landskrona | Landskrona | Landskrona IP | 10,500 |
| Lindome | Lindome | Lindevi IP | 1,500 |
| FC [Linköping City|Linköping City] | Linköping | Linköping Arena | 8,500 |
| Lund | Lund | Klostergårdens IP | 8,560 |
| Motala | Motala | Motala Idrottspark | 8,500 |
| Oskarshamn | Oskarshamn | Oskarshamn (football venue)|Arena Oskarshamn] | 2,000 |
| Qviding | Gothenburg | Valhalla IP | 4,000 |
| Skövde | Skövde | Södermalms IP | 4,500 |
| Torn | Stångby | Tornvallen | 1,500 |
| Trollhättan | Trollhättan | Edsborgs IP | 5,100 |
| Tvååkers | Tvååker | Övrevi IP | 1,000 |
| Utsikten | Gothenburg | Ruddalens IP | 5,000 |
| Värnamo | Värnamo | Finnvedsvallen | 5,000 |
League tables
Norra
Södra
Results
Relegation play-offs
The 13th-placed teams of each division meet each other, and the best two runners-up from 2020 Division 2 meet each other, in two-legged ties on a home-and-away basis. The winners of each matchup qualify for the 2021 Division 1.----
Åtvidabergs won, 3-2, via forfeit.
Västra Frölunda IF player Anton Karl Delwér played in the second leg while suspended after his second yellow card of the season during the first leg. Västra Frölunda originally led the second leg, 3-1, and the aggregate, 3-3, via away goals rule, after both games. Result overturned after Delwér participated in the second leg in violation of rules.
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Lunds BK won 3–1 on aggregate.
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Season statistics
Top scorers - Norra
| Rank | Player | Club | Goals | ||||
| 1 |  Top scorers - Södra
|
