Gran Hermano 12 launched on October 17, 2010 and ended on March 10, 2011, making it the longest season of Gran Hermano to date, just lasting a day longer than the previous series. It took place after Gran Hermano All Stars. This is the twelfth Spanish edition of the reality franchise Big Brother. The main show which consists of nominations and evictions are known as the Gala and El Debate, a weekly spin-off show, where recently evicted housemates will return. The tag line for this edition is La Cuarta Dimensión. The grand prize this season is €300,000.

• Jorge Javier Vázquez
• Ion Aramendi