Porterhouse Blue is a novel written by Tom Sharpe, first published in 1974. A satirical look at Cambridge life and the struggle between tradition and reform, Porterhouse Blue tells the story of Skullion, the Head Porter of Porterhouse, a fictional college of Cambridge University.

Thomas Ridley Sharpe was an English satirical novelist, best known for his Wilt series, as well as Porterhouse Blue and Blott on the Landscape, all three of which were adapted for television.