The 2011–12 Primeira Liga (also known as Liga ZON Sagres for sponsorship reasons) was the 78th season of the Primeira Liga, the top professional league for Portuguese association football clubs. It began on 14 August 2011 and ended on 13 May 2012. A total of 16 teams contested the league, 14 of which already took part in the previous season and two of which were promoted from the Liga de Honra. Porto were the defending champions and secured their 26th and second consecutive league title. Óscar Cardozo and Lima, respectively Benfica's and Braga's strikers, were the joint top scorers with 20 goals.