The thirty-seventh season of Saturday Night Live premiered on September 24, 2011 and concluded it on May 19, 2012. This is the final season for Paul Brittain, Kristen Wiig, Andy Samberg and Abby Elliott as cast members, and the first season to star Kate McKinnon as a cast member. Nasim Pedrad was upgraded to repertory status. Vanessa Bayer, Paul Brittain, Taran Killam and Jay Pharoah were still featured players until next season. Paul Brittain left the show in the middle of the season to move on the some other stuff. So Vanessa, Taran and Jay were still featured players until next season.
- Paul Brittain: Last January 14
- Kate McKinnon: First April 7
- Alec Baldwin, who hosted the September 24, 2011 episode and the season premiere, attains the record of most frequent host which was formerly shared with him and Steve Martin, with sixteen times hosting. That episode was also Baldwin's first time hosting a season premiere, and has joined Martin in becoming one of two men to host a season premiere, a Christmas episode and a season finale.
- With this season Seth Meyers surpasses Tina Fey as the longest serving Weekend Update anchor, though she remains the longest serving female Update anchor.