| Club: | K.A.S. Eupen |
| Season: | 2020–21 |
| Ownertitle: | Owner |
| Owner: | ASPIRE Zone Foundation |
| Chrtitle: | Chairman |
| Chairman: | Dieter Steffens |
| Mgrtitle: | Manager |
| Manager: | Beñat San José |
| Stadium: | Kehrwegstadion |
| League: | Belgian First Division A |
| League Result: | 12th |
| Cup1: | Belgian Cup |
| Cup1 Result: | Semi-finals |
| League Topscorer: | Smail Prevljak (15) |
| Season Topscorer: | Smail Prevljak (15) |
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| Prevseason: | 2019–20 |
| Nextseason: | 2021–22 |
The 2020–21 K.A.S. Eupen season was the club's 76th season in existence and its 5th consecutive season in the top flight of Belgian football. In addition to the domestic league, Eupen participated in this season's edition of the Belgian Cup. The season covered the period from 1 July 2020 to 30 June 2021.
| scope=col | Player | Transferred from | scope=col; style="width: 65px;" | Fee | scope=col | Date | scope=col | Source | ||
|---|---|---|---|---|---|---|---|---|---|---|
| 15 | TBD |
| scope=col | Player | Transferred to | scope=col; style="width: 65px;" | Fee | scope=col | Date | scope=col | Source | ||
|---|---|---|---|---|---|---|---|---|---|---|
| 15 | TBD |
See main article: 2020–21 Belgian First Division A.
The league fixtures were announced on 8 July 2020.[1]
See main article: 2020–21 Belgian Cup.
| width=15 | width=15 | width=15 | width=15 | width=145 | Name | width=120 | Pro League | width=120 | Belgian Cup | width=120 | Total | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 26 | MF |  | Jens Cools | 1 | 0 | 1 | ||||||||
| 29 | MF |  | Isaac Nuhu | 1 | 0 | 1 | |||||||||
| 7 | FW | | Julien Ngoy | 1 | 0 | 1 | |||||||||
| 9 | FW |  | Smail Prevljak | 1 | 0 | 1 | |||||||||
| Totals | 4 | 0 | 4 | ||||||||||||