AIK conceded the fewest goals in the Allsvenskan in 2021, with 25 goals from 30 games. Halmstad were next on 26.
AIK had the fewest goals conceded per game in the Allsvenskan in 2021, with 0.8 a game, 25 goals from 30 games. Halmstad and Mjällby were next on 0.9.
| Rank | Team | Goals Against |
|---|---|---|
| 1 | AIK | 25 |
| 2 | Halmstad | 26 |
| 3 | Mjällby | 27 |
| 4 | Malmö FF | 30 |
| 5 | Djurgården | 30 |
| 6 | Elfsborg | 35 |
| 7 | Varberg BoIS | 38 |
| 8 | Kalmar | 39 |
| 9 | IFK Göteborg | 39 |
| 10 | Hammarby | 41 |
| 11 | Norrköping | 41 |
| 12 | Häcken | 46 |
| 13 | Degerfors | 51 |
| 14 | Sirius | 53 |
| 15 | Örebro | 58 |
| 16 | Östersunds FK | 59 |