When the Abbey Theatre faced rioters in 1926 during the first performances of The Plough and the Stars, the theatre managers decided to continue with the scheduled seven-night run and then to revive the piece three months later. However, despite that boldness in the face of opposition, O’Casey subsequently found himself confronted with various kinds of official and unofficial censorship, both in Ireland and elsewhere. This chapter details that censorship and describes its effect on O’Casey’s work and reputation. The chapter examines O’Casey’s work in the theatre, and also examines censorship of O’Casey’s nontheatrical work, such as Windfalls, I Knock at the Door, and Pictures in the Hallway.