2003–04 NBA season

The 2003–04 NBA season was the 58th season of the National Basketball Association (NBA). The season ended with the Detroit Pistons defeating the Los Angeles Lakers 4–1 in the 2004 NBA Finals.

The 2003–04 NBA season was the culmination of the "dead-ball" era of the league, in which the NBA saw its lowest offensive rating since the 1998–99 season, at 102.9. The 2004 Eastern Conference Finals between the Pistons and Indiana Pacers saw scoring totals and efficiency hit historic lows, prompting the NBA to swiftly implement rule changes the following offseason in order to make it easier for offenses moving forward.

As of 2025, the only active player in the NBA who has played games in the 2003–04 season is LeBron James.

This was the last season for the original two-division format in both the Eastern and Western Conferences, before each of the conferences added a third division the following season. As a result, this would also be the final season for the NBA Midwest Division, as the Minnesota Timberwolves were that division's last champion, the only division title the franchise has won in their twenty-nine seasons in the NBA.

The All-Star Game was held at the Staples Center in Los Angeles. The West won 136–132; Lakers center Shaquille O'Neal was named Most Valuable Player.

For the first time in 21 years the Portland Trail Blazers did not make the playoffs, ending the second longest streak in NBA history. For the first time in 20 years the Utah Jazz did not make the playoffs, ending the third longest streak in NBA history.

The Houston Rockets played their first game at the Toyota Center. They reached the playoffs for the first time since 1999 and lost to the eventual Conference champion Lakers in five games. This marked the only playoff appearance of Steve Francis NBA career.

Prior to the start of the season, Karl Malone and Gary Payton took major paycuts to leave their teams and join Kobe Bryant and Shaquille O'Neal on the Lakers for a chance at a possible NBA title. However, that title chase came to an end in the NBA Finals, as the Detroit Pistons won 4–1. The Minnesota Timberwolves, behind their "Big Three" of Kevin Garnett, Latrell Sprewell, and Sam Cassell, amassed the best record in the Western Conference, and were expected to finally win a first round playoff series. They won two and advanced to the Western Conference Finals, which they lost to the Lakers. It would be their last playoff appearance until the 2017–18 season.