The 2011–12 Persian Gulf Cup (also known as Iran Pro League) was the 29th season of Iran's Football League and 11th as Iran Pro League since its establishment in 2001. Sepahan were the defending champions. The season featured 15 teams from the 2010–11 Persian Gulf Cup and three new teams promoted from the 2010–11 Azadegan League: Damash as champions, Mes Sarcheshmeh and Fajr Sepasi. The league started on 2 August 2011 and ended on 11 May 2012. Sepahan won the Pro League title for the fourth time in their history (total fourth Iranian title).