| Club: | Alanyaspor |
| Season: | 2020–21 |
| Chrtitle: | President |
| Chairman: | Hasan Çavuşoğlu |
| Mgrtitle: | Manager |
| Manager: | Çağdaş Atan |
| Stadium: | Bahçeşehir Okulları Stadium |
| League: | Süper Lig |
| League Result: | 7th |
| Cup1: | Turkish Cup |
| Cup1 Result: | Semi-finals |
| Cup2: | UEFA Europa League |
| Cup2 Result: | Third qualifying round |
| League Topscorer: | Davidson (8) |
| Season Topscorer: | Khouma Babacar (11) |
| Pattern La1: | _alanyaspor2021h |
| Pattern B1: | _alanyaspor2021h |
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| Prevseason: | 2019–20 |
| Nextseason: | 2021–22 |
The 2020–21 season was Alanyaspor's 73rd season in existence and the club's fifth consecutive season in the top flight of Turkish football. In addition to the domestic league, Alanyaspor participated in this season's editions of the Turkish Cup and the UEFA Europa League. The season covered the period from July 2020 to 30 June 2021.
See main article: 2020–21 Süper Lig.
See main article: 2020–21 Turkish Cup.
See main article: 2020–21 UEFA Europa League.