Big Brother 14 was the fourteenth season of the American reality television series Big Brother that premiered on July 12, 2012 on CBS and ended with its finale on September 19, 2012. The show is produced by Endemol USA and Fly on the Wall Entertainment. The premise of the series remained largely unchanged from previous editions of the series, in which a group of contestants, known as "HouseGuests," compete to win the series by voting each other off and being the last HouseGuest remaining. One HouseGuest, known as the Head of Household, must nominate two of their fellow HouseGuests for eviction. The winner of the Power of Veto can remove one of the nominees from the block, forcing the HoH to nominate another HouseGuest. The HouseGuests then vote to evict one of the nominees and the HouseGuest with the most votes is evicted. When only two HouseGuests remained, the last seven evicted HouseGuests, known as the Jury of Seven, would decide which of them would win the $500,000 prize. A HouseGuest can be expelled from the show for breaking rules, such as exhibiting violent and disruptive behavior.
On September 19, 2012, Ian Terry won the season by a 6–1 vote over runner-up Dan Gheesling.
Big Brother 14 was produced by Endemol USA and Fly on the Wall Entertainment with Allison Grodner and Rich Meehan returning as executive producers. This season was announced on the same day as the finale of Big Brother 13 in a press release issued from CBS. Casting for Big Brother 14 began during the finale of Big Brother 13. This is the first season to use an online application process and to have a dedicated casting website like Big Brother UK. Applicants are required to make a three-minute video then use a form to submit it to the producers with a current picture. Applications and video submissions were due on May 11, 2012. Applicants chosen to be a finalist went to Los Angeles, where they were narrowed down to a pool of 40 finalists. Open casting calls were held by the producers where they visited New Orleans, Los Angeles, New York City, Charleston, Odessa, Dallas, Miami, Cincinnati, Boise, Chicago, Atlanta, Denver, Louisville, Boston, Champaign and Phoenix. On June 4, 2012, Robyn Kass, casting director for Big Brother, revealed on her Twitter that all semi-finalists were contacted.