This article details the 2011–12 UEFA Europa League group stage.
The group stage featured 48 teams: the 38 winners of the play-off round, and the 10 losing teams from the Champions League play-off round.
The teams were drawn into twelve groups of four, and played each other home-and-away in a round-robin format. The matchdays were 15 September, 29 September, 20 October, 3 November, 30 November–1 December, and 14–15 December 2011.
The top two teams in each group advanced to the round of 32, where they were joined by the eight third-placed teams from the Champions League group stage.
The draw for the group stage was held at Grimaldi Forum, Monaco on 26 August 2011 at 13:00 CEST (UTC+02:00).
Teams were seeded into four pots based on their 2011 UEFA club coefficients. Pot 1 held teams ranked 18–49, Pot 2 held teams ranked 51–85, Pot 3 held teams ranked 89–154, while Pot 4 held teams ranked 155–302 and unranked teams.
CL-CR Losing teams from the Champions League play-off round (Champions Route)
CL-LR Losing teams from the Champions League play-off round (League Route)