The 2011–12 UEFA Europa League was the third season of the UEFA Europa League, Europe's secondary club football tournament organised by UEFA, and the 41st edition overall including its predecessor, the UEFA Cup.
It began on 30 June 2011 with the first legs of the first qualifying round, and ended on 9 May 2012 with the final held at Arena Națională in Bucharest, Romania.
As part of a trial that started in the 2009–10 UEFA Europa League, two extra officials – one on each goal line – were used in all matches of the competition from the group stage.

Atlético Madrid won the title, defeating Athletic Bilbao 3–0 in an all-Spanish final.
Porto were the defending champions, but they were beaten by Manchester City in the Round of 32.
The 2011–12 UEFA Europa League was the third season of the UEFA Europa League, Europe's secondary club football tournament organised by UEFA, and the 41st edition overall including its predecessor, the UEFA Cup. It began on 30 June 2011 with the first legs of the first qualifying round, and ended on 9 May 2012 with the final held at Arena Națională in Bucharest, Romania. As part of a trial that started in the 2009–10 UEFA Europa League, two extra officials – one on each goal line – were used in all matches of the competition from the group stage.
Atlético Madrid won the title, defeating Athletic Bilbao 3–0 in an all-Spanish final. Porto were the defending champions, but they were beaten by Manchester City in the Round of 32.
2011–12 UEFA Europa League