Saint Joan is a play by George Bernard Shaw that he wrote shortly after the Roman Catholic Church canonized Joan of Arc. It is a dramatization based on the records of her trial made public by the Church in the 1920s that was first produced in 1923. The play itself is a statement on "organized religion" as an oxymoron and depicts Joan herself as the model of clear thinking in a muddled world.

Although Shaw had a much larger body of work, this play is often credited with his receiving the 1925 Nobel Prize for Literature.