| Club: | A.S. Cittadella |
| Season: | 2020–21 |
| Chrtitle: | Chairman |
| Chairman: | Andrea Gabrielli |
| Mgrtitle: | Manager |
| Manager: | Roberto Venturato |
| Stadium: | Stadio Pier Cesare Tombolato |
| League: | Serie B |
| League Result: | 6th |
| Cup1: | Coppa Italia |
| Cup1 Result: | Third round |
| Pattern La1: | _cittadella1920h |
| Pattern La2: | _cittadella1920a |
| Pattern La3: | _cittadella1920t |
| Pattern B1: | _cittadella1920h |
| Pattern B2: | _cittadella2021a |
| Pattern B3: | _cittadella1920t |
| Pattern Ra1: | _cittadella1920h |
| Pattern Ra2: | _cittadella1920a |
| Pattern Ra3: | _cittadella1920t |
| Pattern Sh1: | _cittadella1920h |
| Pattern Sh2: | _cittadella1920a |
| Pattern Sh3: | _cittadella1920t |
| Leftarm1: | 8D0000 |
| Leftarm2: | FFFF00 |
| Leftarm3: | FFFFFF |
| Body1: | 8D0000 |
| Body2: | FFFF00 |
| Body3: | FFFFFF |
| Rightarm1: | 8D0000 |
| Rightarm2: | FFFF00 |
| Rightarm3: | FFFFFF |
| Shorts1: | 8D0000 |
| Shorts2: | FFFF00 |
| Shorts3: | FFFFFF |
| Socks1: | 8D0000 |
| Socks2: | FFFF00 |
| Socks3: | FFFFFF |
| Prevseason: | 2019–20 |
| Nextseason: | 2021–22 |
The 2020–21 season was the 48th season in the existence of A.S. Cittadella and the club's second consecutive season in the second division of Italian football. In addition to the domestic league, Cittadella participated in this season's edition of the Coppa Italia.
See main article: 2020–21 Serie B.
The league fixtures were announced on 9 September 2020.[2]
See main article: 2020–21 Coppa Italia.