| Club: | Heracles Almelo |
| Season: | 2020–21 |
| Chrtitle: | Chairman |
| Chairman: | Hans Bredewoud |
| Mgrtitle: | Manager |
| Manager: | Frank Wormuth |
| Stadium: | Erve Asito |
| League: | Eredivisie |
| League Result: | 9th |
| Cup1: | KNVB Cup |
| Cup1 Result: | Round of 16 |
| League Topscorer: | Rai Vloet (16) |
| Season Topscorer: | Rai Vloet (17) |
| Pattern La1: | _heracles2021h |
| Pattern B1: | _heracles2021h |
| Pattern Ra1: | _heracles2021h |
| Pattern So1: | _heracles2021H |
| Leftarm1: | FFFFFF |
| Body1: | FFFFFF |
| Rightarm1: | FFFFFF |
| Shorts1: | 000000 |
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| Pattern La2: | _heracles2021a |
| Pattern B2: | _heracles2021a |
| Pattern Ra2: | _heracles2021a |
| Pattern So2: | _heracles2021a |
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| Prevseason: | 2019–20 |
| Nextseason: | 2021–22 |
The 2020–21 season was the 118th season in existence of Heracles Almelo and the club's 16th consecutive season in the top flight of Dutch football. In addition to the domestic league, Heracles Almelo participated in this season's edition of the KNVB 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 Eredivisie.
The league fixtures were announced on 24 July 2020.[1]
See main article: 2020–21 KNVB Cup.