| Club: | Real Sociedad |
| Season: | 2020–21 |
| Chrtitle: | President |
| Chairman: | Jokin Aperribay |
| Mgrtitle: | Head coach |
| Manager: | Imanol Alguacil |
| Stadium: | Anoeta Stadium |
| League: | La Liga |
| League Result: | 5th |
| Cup1: | Copa del Rey |
| Cup1 Result: | Round of 16 |
| Cup2 Result: | Semi-finals |
| Cup3: | UEFA Europa League |
| Cup3 Result: | Round of 32 |
| League Topscorer: | Alexander Isak (17) |
| Season Topscorer: | Alexander Isak (17) |
| Largest Win: | Real Sociedad 4–0 Alavés |
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| Prevseason: | 2019–20 |
| Nextseason: | 2021–22 |
The 2020–21 season was the 111th season in the existence of Real Sociedad and the club's 11th consecutive season in the top flight of Spanish football. In addition to the domestic league, Real Sociedad participated in this season's editions of the Copa del Rey, the Supercopa de España, and also participated in the UEFA Europa League. The season covered the period from 20 July 2020 to 30 June 2021, with the late start to the season due to the COVID-19 pandemic in Spain.
This season was the first since 2007–08 without fellow centre-back David Zurutuza who announced his retirement from football after the previous campaign had concluded.
See main article: Real Sociedad B.
| Date | Player | From | Type | Fee | Ref | |
|---|---|---|---|---|---|---|
| 30 June 2020 | align=center colspan=2 | Loan return | [2] | |||
| 30 June 2020 | align=center colspan=2 | Loan return | [3] | |||
| 20 July 2020 | align=center colspan=2 | Loan return | [4] | |||
| 21 July 2020 | align=center colspan=2 | Loan return | [5] | |||
| 21 July 2020 | align=center colspan=2 | Loan return | [6] | |||
| 21 July 2020 | align=center colspan=2 | Loan return | [7] | |||
| 17 August 2020 | Transfer | Free | [8] | |||
| 24 January 2021 | Transfer | €10M | [9] |
| Date | Player | To | Type | Fee | Ref |
|---|---|---|---|---|---|
| 20 July 2020 | align=center colspan=2 | Loan return | [10] | ||
| 20 July 2020 | Retired | [11] | |||
| 4 August 2020 | Buyout clause | €250K | [12] | ||
| 4 September 2020 | Transfer | €5M | [13] | ||
| 12 September 2020 | align=center colspan=2 | Loan | [14] | ||
| 24 September 2020 | Transfer | €20M | [15] | ||
| 30 September 2020 | align=center colspan=2 | Loan | [16] | ||
| 1 October 2020 | align=center colspan=2 | Loan | [17] | ||
| 23 January 2021 | align=center colspan=2 | Loan | [18] | ||
See main article: 2020–21 La Liga.
The league fixtures were announced on 31 August 2020.[19] [20]
See main article: 2020–21 Copa del Rey.
See main article: 2020–21 Supercopa de España.
The draw was held on 17 December 2020.[21] [22]
See main article: 2020–21 UEFA Europa League.
The group stage draw was held on 2 October 2020.[23]
See main article: 2020–21 UEFA Europa League knockout phase.
The draw for the round of 32 was held on 14 December 2020.[24]
Last updated on 22 May 2021. Does not include the 2020 Copa del Rey Final, delayed until April 2021 and counted in the 2020–21 season in some resources – these stats are recorded under the 2019–20 Real Sociedad season article.|-! colspan="14" style="background:#dcdcdc; text-align:center"|Goalkeepers|-! colspan="14" style="background:#dcdcdc; text-align:center"|Defenders|-! colspan="14" style="background:#dcdcdc; text-align:center"|Midfielders|-! colspan="14" style="background:#dcdcdc; text-align:center"|Forwards|-! colspan=14 style=background:#dcdcdc; text-align:center|Players who have made an appearance this season but have left the club|}
| width=15 | width=15 | width=15 | width=15 | width=145 | Name | width=100 | La Liga | width=100 | Copa del Rey | width=150 | Supercopa de España | width=120 | Europa League | width=100 | Total | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 13 | MF |  | Mikel Oyarzabal | 11 | 1 | 1 | 0 | 13 | ||||||||||
| 2 | 7 | MF | | Portu | 5 | 0 | 0 | 1 | 6 | ||||||||||
| 9 | FW |  | Willian José | 3 | 2 | 0 | 1 | 6 | |||||||||||
| 14 | FW |  | Alexander Isak | 6 | 0 | 0 | 0 | 6 | |||||||||||
| 5 | 11 | MF |  | Adnan Januzaj | 2 | 0 | 0 | 0 | 2 | ||||||||||
| 28 | MF | | Roberto López | 2 | 0 | 0 | 0 | 2 | |||||||||||
| 25 | FW | | Jon Bautista | 0 | 0 | 0 | 2 | 2 | |||||||||||
| 20 | DF | | Nacho Monreal | 1 | 0 | 0 | 1 | 2 | |||||||||||
| 22 | FW | | Ander Barrenetxea | 2 | 0 | 0 | 0 | 2 | |||||||||||
| 10 | 8 | MF | | Mikel Merino | 1 | 0 | 0 | 0 | 1 | ||||||||||
| 21 | MF | | David Silva | 1 | 0 | 0 | 0 | 1 | |||||||||||
| Own goal | 1 | 0 | 0 | 0 | 1 | ||||||||||||||
| Totals | 32 | 3 | 1 | 5 | 41 | ||||||||||||||