The ACB Best Defender is an annual award given since the 2020–21 season to the best defensive player in the Liga ACB, the top-tier professional basketball league in Spain. Edy Tavares has won the award in every season since its inception.
| Season | Player | Position | Nationality | Team | Ref. |
|---|---|---|---|---|---|
| 2020–21 | Edy Tavares | Center | Real Madrid | ||
| 2021–22 | Edy Tavares (2x) | Center | Real Madrid | ||
| 2022–23 | Edy Tavares (3x) | Center | Real Madrid | ||
| 2023–24 | Edy Tavares (4x) | Center | Real Madrid | ||
| 2024–25 | Edy Tavares (5x) | Center | Real Madrid | ||
| 2025–26 | Edy Tavares (6x) | Center | Real Madrid |