The 2011–12 Aviva Premiership was the 25th season of the top flight English domestic rugby union competition and the second one to be sponsored by Aviva. The reigning champions entering the season were Saracens, who had claimed their first title after defeating Leicester Tigers in the 2011 final. Worcester Warriors had been promoted as champions from the 2010–11 RFU Championship at the first attempt.

Saracens Rugby Club is an English professional rugby union club based in North London, England, currently playing in Premiership Rugby, the highest level of competition in English rugby.