| Club: | USL Dunkerque |
| Season: | 2020–21 |
| Chrtitle: | Chairman |
| Chairman: | Jean-Pierre Scouarnec |
| Mgrtitle: | Manager |
| Manager: | Fabien Mercadal |
| Stadium: | Stade Marcel-Tribut |
| League: | Ligue 2 |
| League Result: | 16th |
| Cup1: | Coupe de France |
| Cup1 Result: | Eighth round |
| League Topscorer: | Malik Tchokounté (9) |
| Season Topscorer: | Malik Tchokounté (10) |
| Pattern La1: | _dunkerque2021h |
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| Pattern La2: | _dunkerque2021A |
| Pattern B2: | _dunkerque2021A |
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| Prevseason: | 2019–20 |
| Nextseason: | 2021–22 |
The 2020–21 USL Dunkerque season was the club's 111th season in existence and its first season back in the second flight of French football. In addition to the domestic league, Dunkerque participated in this season's edition of the Coupe de France. The season covered the period from 1 July 2020 to 30 June 2021.
See main article: 2020–21 Ligue 2.
The league fixtures were announced on 9 July 2020.[1]
See main article: 2020–21 Coupe de France.