| Supergirl | |
|---|---|
| Season 6 | |
 Original poster | |
| Starring | |
| No. of episodes | 20 |
| Release | |
| Original network | The CW |
| Original release | March 30 – November 9, 2021 |
| Season chronology | |
The sixth and final season of the American television series Supergirl, which is based on the DC Comics character Kara Zor-El / Supergirl and premiered on The CW on March 30, 2021, and consisted of 20 episodes. It is set in the Arrowverse, sharing continuity with the other television series of the universe. The season is produced by Berlanti Productions, Warner Bros. Television and DC Entertainment, with Jessica Queller and Robert Rovner serving as showrunners.
The season was ordered in January 2020, with filming beginning that October. Melissa Benoist stars as Kara, with principal cast members Chyler Leigh, Katie McGrath, Jesse Rath, Nicole Maines, Azie Tesfai, Julie Gonzalo, Staz Nair and David Harewood also returning from previous seasons. They are joined by new cast member Peta Sergeant. Former series regulars Andrea Brooks, Mehcad Brooks, Calista Flockhart, Jeremy Jordan, and Chris Wood all return for guest appearances, with the latter four returning in the series finale.