The Sibyl, or The Elder Brutus is a tragedy by the English writer Richard Cumberland. Written but not performed or printed in his lifetime, it was included in the posthumous collections of his works published in 1813. Inspired by the Cumaean Sibyl, it depicts the overthrow of the Roman monarchy. On 3 December 1818 it premiered at the Theatre Royal, Drury Lane in London. John Howard Payne substantially reworked the piece for production while Edmund Kean played the role of Brutus. It was performed and published under the title Brutus.