The 2011–12 All-Ireland Senior Club Football Championship was the 42nd staging of the All-Ireland Senior Club Football Championship since its establishment by the Gaelic Athletic Association in 1970-71.

The championship began on 16 October 2011 and ended on 31 March 2012.

Crossmaglen Rangers entered the championship as the defending champions.

[1] On 31 March 2012, Crossmaglen Rangers won the championship following a 2-19 to 1-07 defeat of Garrycastle in the All-Ireland final replay at Kingspan Breffni Park.

Garrycastle's Dessie Dolan was the championship's top scorer with 0-29.