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.

[1] 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.

[2] [3] John Howard Payne substantially reworked the piece for production while Edmund Kean played the role of Brutus.