2011–12 SS Lazio season

The 2011–12 season was the 112th season in Società Sportiva Lazio's history and their 24th consecutive season in the top-flight of Italian football.

Pre-season
During the pre-season, Lazio purchased Djibril Cissé from Panathinaikos, Miroslav Klose from Bayern Munich, Abdoulay Konko from Genoa, Lorik Cana from Galatasaray and Senad Lulić from Young Boys. They also sold Stephan Lichtsteiner to Juventus for €10 million and purchased goalkeeper Federico Marchetti from Cagliari. They then sold goalkeeper Fernando Muslera to Galatasaray.

Current squad
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Play-off round
Having qualified for the Europa League play-off round in the previous Serie A campaign, Lazio played a double-legged match for their chance to enter the Europa League. On 5 August 2011, Lazio drew Macedonian side FK Rabotnički, a team who has survived since the first qualifying round, earning them World's Club Team of the Month for July 2011.

Group stage

 * Notes
 *  Note 3: Vaslui played their home matches at Stadionul Ceahlăul, Piatra Neamţ as their own Stadionul Municipal did not meet UEFA criteria.

Squad statistics
Statistics accurate as of match played 23 February 2012