The 2012–13 Miami Heat season was the franchise's 25th season in the National Basketball Association (NBA). They came into the season as the defending NBA champions, back-to-back Eastern Conference champions, the third season playing with the "Big Three" of Dwyane Wade, LeBron James, and Chris Bosh, and the fifth season under head coach Erik Spoelstra. During the season, the Heat embarked on 27 game winning streak, which still ranks as the 2nd longest winning streak in a single season in NBA history. On June 3, 2013, the Heat defeated the Indiana Pacers in game seven of the Eastern Conference Finals to become the first team since the Chicago Bulls in 1998 to Three-peat as Eastern Conference champions. The Heat then defeated the San Antonio Spurs in an NBA Finals that went the full seven games, which also echoed the 1997–98 Bulls as they had also been the last Eastern team to repeat as NBA champions.

The team's season roster is featured in the video games NBA 2K16 and NBA 2K17.

^a Traded to the Philadelphia 76ers for draft rights to Justin Hamilton and a future first-round pick.

The following records were set or tied by the Heat this season-

Via free agency

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