The ninth season of the American reality talent show The Voice premiered on September 21, 2015 on NBC.

Jordan Smith was named the winner of the season, marking Adam Levine's third win as a coach.

The first phase of the competition, the Blind Auditions, taped on June 29–30 and July 7–8, 2015, and began airing when the season premiered on September 21, 2015.

The four coaches performed a medley of each other's songs, including "Neon Light", "Don't Speak", "Sugar" and "Get Lucky", which were sung by Gwen Stefani, Blake Shelton, Pharrell Williams, and Adam Levine, respectively.

The traditional iTunes multiplier bonus begins with the Live Playoffs and continues through the end of the semi-finals.

For the first time in the show's history, a "Coach Comeback" feature was introduced where each coach reinstated one previously eliminated artist from the Battles or Knockouts to perform in the Live Playoffs with the top 20 and will get a chance to move on to the live shows as part of the top 12.

[7] iTunes bonus multipliers were awarded to Smith (#2), Barrett Baber (#3), Madi Davis (#4), Ann Roberts (#5), Austin (#7), Amy Vachal (#8) and Shelby Brown (#10).

iTunes bonus multipliers were awarded for the most number of artists (eight, surpassing seven on the previous week) in a single week of shows in The Voice history, those being Smith (#1), Austin (#3), Ann Roberts (#4), Davis (#5), Vachal (#6), Braiden Sunshine (#7), Zach Seabaugh (#8) and Barrett Baber (#9).

The contestant's song choices reach the top 10 on iTunes for Jordan Smith (#1, #3 and #5), Emily Ann Roberts (#2 and #6), Barrett Baber (#7), Jeffery Austin (#9).