1999–2000 Miami Heat season

The 1999–2000 NBA season was the 12th season for the Miami Heat in the National Basketball Association. During the off-season, the team signed free agents Otis Thorpe, and undrafted rookie point guard Anthony Carter. The Heat played the first two months of the regular season at the Miami Arena, and played their final home game there on December 28, 1999, against the Minnesota Timberwolves; the team then moved into the American Airlines Arena on January 2, 2000, against the Orlando Magic.

The Heat got off to a 15–4 start to the regular season, then later on held a 30–17 record at the All-Star break. However, Tim Hardaway only played 52 games due to knee injuries, and Voshon Lenard was out for the remainder of the season with a lower abdominal strain after 53 games. At mid-season, the team signed free agent Bruce Bowen, who was previously released by the Chicago Bulls, who acquired him from the Philadelphia 76ers in a three-team trade. The Heat posted a 7-game winning streak between March and April, and finished in first place in the Atlantic Division with a 52–30 record, earning the #2 seed in the Eastern Conference.

Alonzo Mourning averaged 21.7 points, 9.5 rebounds and 3.7 blocks per game, and was named the NBA Defensive Player of the Year for the second consecutive year; he was also named to the All-NBA Second Team, named to the NBA All-Defensive First Team, and was selected for the 2000 NBA All-Star Game in Oakland, California. In addition, Jamal Mashburn averaged 17.5 points and 5.0 rebounds per game, and led the Heat with 112 three-point field goals, while Hardaway provided the team with 13.4 points and 7.4 assists per game, Lenard contributed 11.9 points per game off the bench as the team's sixth man, and P.J. Brown provided with 9.6 points and 7.5 rebounds per game. Meanwhile, three-point specialist Dan Majerle contributed 7.3 points and 1.3 steals per game, along with 110 three-point field goals, while Clarence Weatherspoon averaged 7.2 points and 5.8 rebounds per game off the bench, and Carter provided with 6.3 points, 4.8 assists and 1.2 steals per game.

Mourning also finished in third place in Most Valuable Player voting behind Shaquille O'Neal of the Los Angeles Lakers, and Kevin Garnett of the Minnesota Timberwolves, and head coach Pat Riley finished tied in fifth place in Coach of the Year voting.

In the Eastern Conference First Round of the 2000 NBA playoffs, the Heat swept the Detroit Pistons in three straight games, en route to advancing to the second round for the first time since 1997. In the Eastern Conference Semi-finals, they faced off against the New York Knicks for the fourth consecutive year; after taking a 3–2 series lead, the Heat would lose the final two games to the 3rd-seeded Knicks, including an 83–82 home loss in Game 7.

Following the season, Mashburn, Brown and Thorpe were all traded to the Charlotte Hornets, while Lenard and Mark Strickland were both traded to the Denver Nuggets, and Weatherspoon was dealt to the Cleveland Cavaliers in a three-team trade.

For the season, the Heat changed their primary logo adding a darker red color to the flaming basketball, and added new uniforms with side panels to their jerseys and shorts. The uniforms remained in use until 2009, where they switched the logo to the other leg of their shorts, while the primary logo is still present as of 2025.