The 2011 NBA playoffs was the postseason tournament of the National Basketball Association's 2010–11 season. The tournament concluded with the Western Conference champion Dallas Mavericks defeating the Eastern Conference champion Miami Heat 4 games to 2 in the NBA Finals. Dirk Nowitzki was named NBA Finals MVP.

The San Antonio Spurs entered their fourteenth consecutive postseason. They also entered as the top seed in the Western Conference for the first time since 2006, in addition to entering the postseason with 50+ regular season wins for the twelfth consecutive season.

The two-time defending champions, the Los Angeles Lakers entered their sixth consecutive postseason. However, this would be their first since 2007 without posting the top seed in the Western Conference.

The Dallas Mavericks entered their eleventh consecutive postseason, and their eleventh straight appearance having won 50+ games in the regular season.

The Oklahoma City Thunder entered the playoffs with their first Northwest Division title under this incarnation.

The Denver Nuggets entered their eighth consecutive postseason and their first since 1995 without Carmelo Anthony on the roster.

The Portland Trail Blazers entered their third consecutive postseason.

The New Orleans Hornets also returned to the playoffs for the third time in four seasons. However, this was also their final postseason appearance before the franchise was renamed the Pelicans before the 2013–14 season. They lost in the first round to the Los Angeles Lakers in six games, and would not return to the playoffs until 2015.