The fourth season of the American television drama series Sons of Anarchy premiered on September 6, 2011, and concluded on December 6, 2011, after 14 episodes aired on cable network FX.

Created by Kurt Sutter, it is about the lives of a close-knit outlaw motorcycle club operating in Charming, a fictional town in California's Central Valley.

After the deaths of Agent Stahl and Jimmy O’Phelan, the imprisoned SAMCRO members leave the penitentiary after their 14-month stay and are met by Lieutenant Eli Roosevelt of the San Joaquin Sheriff's Department, the new law enforcement presence in Charming.

She praised the addition of Lincoln Potter (played by Ray McKinnon), comparing the character's quality to that of antagonist Gustavo Fring from Breaking Bad.

The site's critical consensus reads: "Sons of Anarchy's fourth season is a smart return to the show's original themes, integrated with buzzworthy new elements."