2023–24 Dallas Mavericks season

The 2023–24 Dallas Mavericks season was the 44th season for the franchise in the National Basketball Association (NBA). This was also the final season in which Mark Cuban was the sole owner of the Mavericks; during the season, Cuban transitioned to a minority ownership stake, and Miriam Adelson and Patrick Dumont became majority owners of the franchise.

At the February 8 trade deadline, the Mavericks were eighth in the Western Conference with a 28–23 record when they acquired center Daniel Gafford from the Washington Wizards and forward P. J. Washington from the Charlotte Hornets. The team went 22–9 after the deadline and finished fifth in the West. The Mavericks improved upon their 38–44 record from the 2022–2023 season, qualified for the playoffs, and won the Southwest Division title.

The Mavericks defeated the Los Angeles Clippers and the top-seeded Oklahoma City Thunder each in six games to advance to their second Western Conference Finals appearance in three seasons. In the Conference Finals, the team defeated the Minnesota Timberwolves in five games to advance to the 2024 NBA Finals. The Mavericks' NBA Finals appearance was the third in the franchise's history and the team's first in 13 years since winning its lone NBA title in 2011. In the Finals, the Boston Celtics defeated the Mavericks in five games.

The Dallas Mavericks drew an average home attendance of 20,217 in 41 home games in the 2023–24 NBA season, the 2nd highest in the league.