The 2011–12 FAI Umbro Intermediate Cup was the 85th season of the tournament's existence. 94 clubs competed to win the title, and it was Avondale United who were the victors after they beat Cherry Orchard 2–1 for the second successive season in the final after extra time in Tallaght Stadium to gain their fifth Intermediate Cup title. The 16 teams that reached the fourth round qualified for the 2012 FAI Cup.
The draw was made on 12 October 2011 with ties to be played on the weekend of 30 October 2011. In this round teams from the Leinster Senior League play each other, teams from the Munster Senior League play each other, and teams from the Ulster Senior League play each other.
The draw was made on 2 November 2011 with ties to be played on the weekend of 4 December 2011. In this round teams from the Leinster Senior League, Munster Senior League, Ulster Senior League play each other. The 16 winners of the Third Round ties will progress to the Fourth Round and also qualify for the 2012 FAI Cup.
The draw was made on 6 December 2011 at FAI Headquarters, Abbotstown by the FAI Domestic Committee. Ties are to be played on the weekend of 29 January 2012.
The draw was made on 7 February 2012 at FAI Headquarters, Abbotstown by the FAI Domestic Committee. Ties will be played on the weekend of 4 March 2012.