The 2006–07Dallas Mavericks season was the team's 27th in the NBA. The Mavericks entered the season as the runner-ups of the 2006 NBA Finals, where they lost to the Miami Heat in six games. They began the season hoping to improve upon their 60–22 output from the previous season. They improved by seven wins, finishing 67–15, claiming the top seed in the Western Conference, and qualifying for the playoffs for the seventh consecutive season. In the first round, they met the eight-seeded Golden State Warriors, and lost in six games in a shocking upset. The Mavericks became the third first-seeded team in NBA history to be eliminated by an eighth-seeded team in the playoffs, following the Seattle SuperSonics in 1994, and the Miami Heat in 1999. This would be the last time a 67-win team was eliminated before the Conference Finals until 2016, when the San Antonio Spurs were eliminated by the Oklahoma City Thunder in six games in the Conference Semifinals.
Maurice Ager was selected as the #28 pick in the First Round of the 2006 NBA draft by the Dallas Mavericks. Maurice Ager signed a multi-year contract with the Dallas Mavericks on July 1, 2006.
Josh Howard was selected as the #29 pick in the First Round of the 2003 NBA draft by the Dallas Mavericks. Josh Howard signed a multi-year contract with the Dallas Mavericks on July 3, 2003. Josh Howard signed a multi-year extension with the Dallas Mavericks on October 28, 2006.
Jason Terry was acquired in a trade by the Dallas Mavericks from the Atlanta Hawks on September 4, 2004. Jason Terry re-signed to a multi-year contract as a free agent with the Dallas Mavericks on July 24, 2006.
Jose Barea signed a multi-year contract as a free agent with the Dallas Mavericks on August 16, 2006.
Greg Buckner signed a multi-year contract as a free agent with the Dallas Mavericks on July 13, 2006.
Devean George signed a multi-year contract as a free agent with the Dallas Mavericks on August 2, 2006.
D. J. Mbenga signed a multi-year contract with the Dallas Mavericks on July 14, 2004. D.J. Mbenga re-signed to a multi-year contract as a free agent with the Dallas Mavericks on July 12, 2006.
Pops Mensah-Bonsu signed a multi-year contract as a free agent with the Dallas Mavericks on August 3, 2006.
Kevin Willis signed a contract with the Dallas Mavericks on April 2, 2007. Kevin Willis re-signed to a contract as a free agent with the Dallas Mavericks on April 12, 2007.
