| NBA playoffs | |
| Year: | 1986 |
| Season: | 1985–86 |
| Dates: | April 17–June 8, 1986 |
| Num Teams: | 16 |
| Winners: | Boston Celtics |
| Count: | 16 |
| Second: | Houston Rockets |
| Semifinal1: | Los Angeles Lakers |
| Semifinal2: | Milwaukee Bucks |
| Prev Season: | 1985 |
| Next Season: | 1987 |
The 1986 NBA playoffs was the postseason tournament of the National Basketball Association's 1985–86 season. The tournament concluded with the Eastern Conference champion Boston Celtics defeating the Western Conference champion Houston Rockets 4 games to 2 in the NBA Finals. Larry Bird was named NBA Finals MVP for the second time.
This was the second NBA Finals meeting between the Celtics and Rockets; they met in the 1981 NBA Finals with the same result. It was the third of four straight Eastern Conference championships for Boston, who won 67 games that year, and went 40–1 at home. The Rockets, meanwhile had won just their second conference title in franchise history.
Second-year player Michael Jordan put on a record-setting performance in Game 2 of the Bulls' first-round series against the Celtics, scoring 63 points in a 2-OT loss, which surpassed Elgin Baylor's 61-point performance from the 1962 NBA Finals and still stands as the NBA Playoff scoring record. Jordan averaged 44.7 points per game in the series, but was unable to prevent the Bulls from being swept by a more experienced, more talented Celtics team. The Bulls set a dubious mark by posting the second worst record for a playoff-qualifying team in history, going just 30–52 during the season. Game 2, where the record was set, was ranked by TV Guide as the 26th Most Memorable Moment in Television History, and is credited with boosting the NBA's popularity surge and eventual rise to near the top of the United States television sports market, trailing only football by the mid-90s.
The 1986 playoffs marked the third time in four years that the Milwaukee Bucks advanced to the Eastern Conference Finals, but it would be their last appearance in the series until 2001. The Celtics avenged their 1983 sweep by sweeping the Bucks in four games.
As for the Philadelphia 76ers, this was the last time they would play in a Game 7 until 2001. After their first round loss to the Atlanta Hawks, the Detroit Pistons would advance past the first round in each of the next five seasons (1987, 1988, 1989, 1990, 1991), which include all appearances in the conference finals, three NBA Finals, and two championships.
After moving from Kansas City, where the franchise played its previous thirteen seasons, the Sacramento Kings made their first postseason appearance in their first season in its new city.