The 2021–22 Dallas Mavericks season was the 42nd season of the franchise in the National Basketball Association (NBA). For the first time since 2007–08, Rick Carlisle would not be the head coach of the Mavericks, as he announced his departure from the team on June 17, 2021. It was the first season since 2004–05 without long-time general manager Donnie Nelson, as he announced his departure from the team on June 17, 2021, a day prior to Rick Carlisle's mutual parting with the Mavs. Carlisle and Nelson were part of the Mavs' 2010–11 championship squad, with Nelson being part of the 2005–06 team that made the Finals that year. On June 28, 2021, the Mavericks hired former player and championship member Jason Kidd as their new head coach.