The "Malice at the Palace" (also known as the Pacers–Pistons brawl) was a fight involving players and fans that occurred during a National Basketball Association (NBA) game between the Indiana Pacers and the defending champion Detroit Pistons on November 19, 2004, at the Palace in Auburn Hills, Michigan. The Associated Press called it "the most infamous brawl in NBA history".

Pistons center Ben Wallace attempted a layup shot during the final minute but was fouled from behind by Pacers small forward Ron Artest. A furious Wallace then shoved Artest, and a fight broke out on the court between players from both teams. The players had been separated, game officials were discussing consequences, and Artest was lying on the scorer's table pending an interview when a fan named John Green hit him with a drink thrown from several rows up in the stands.

Artest immediately charged into the crowd and grabbed another fan, Michael Ryan, who he mistakenly believed was the culprit. Several Pacers teammates followed, more drinks and punches were thrown, and the incident escalated into a large brawl that spread from the stands to the court and involved fans and players from both teams. The game was never completed, as a massive police presence was called to the venue to restore order and, later, to allow the visiting Pacers to safely leave the building.

After the game, the NBA suspended nine players, including Artest and Wallace, for a total of 146 games, leading to the players losing $11 million in salary. Five players were charged with assault, and eventually sentenced to a year of probation and community service. Five fans also faced assault charges and were banned from attending Pistons home games for life. The fight also led the NBA to increase security between players and fans and limit the sale of alcohol at games.