Whiplash is a 2014 American psychological drama film written and directed by Damien Chazelle, starring Miles Teller, J. K. Simmons, Paul Reiser, and Melissa Benoist. It focuses on an ambitious music student and aspiring jazz drummer (Teller), who is pushed to his limit by his abusive instructor (Simmons) at the fictional Shaffer Conservatory in New York City.

The film was produced by Bold Films, Blumhouse Productions, and Right of Way Films. Sony Pictures acquired distribution rights for most of the world, releasing the film under Sony Pictures Classics in North America, Germany, and Australia, and Stage 6 Films in the UK, Scandinavia, Benelux, Eastern Europe (excluding the CIS), Greece, South Africa, Spain, Italy, Portugal and Latin America.

Chazelle completed the script in 2013, drawing upon his experiences in a "very competitive" jazz band in high school. Soon after, Right of Way and Blumhouse helped Chazelle turn fifteen pages of the script into an eighteen-minute short film, also titled Whiplash. The short film received acclaim after debuting at the 2013 Sundance Film Festival, which attracted investors to produce the complete version of the script. Filming took place in September 2013 throughout Los Angeles over twenty days. The film explores concepts of perfectionism, dedication, and success and deconstructs the concept of ambition.

Whiplash premiered in competition at the 2014 Sundance Film Festival on January 16, as the festival's opening film, where it won the Audience Award Dramatic and the Grand Jury Prize Dramatic. The film opened in limited release domestically in the United States and Canada on October 10, 2014, gradually expanding to over 500 screens and finally closing on March 26, 2015. The film received acclaim for its screenplay, direction, editing, sound mixing, and performances. It grossed $50 million on a $3.3 million budget during its original theatrical run. The film received multiple accolades, winning Academy Awards for Best Film Editing and Best Sound Mixing, and was nominated for Best Picture and Best Adapted Screenplay. Simmons's performance won the Academy, Golden Globe, BAFTA, Critics' Choice, and Screen Actors Guild awards for Best Supporting Actor. It has since been assessed as one of the best films of the 2010s, the 21st century, and of all time.