The Duchess of Malfi is a Jacobean revenge tragedy written by English dramatist John Webster in 1612–1613. It was first performed privately at the Blackfriars Theatre, then later to a larger audience at The Globe, in 1613–1614.

John Webster was an English Jacobean dramatist best known for his tragedies The White Devil and The Duchess of Malfi, which are often seen as masterpieces of the early 17th-century English stage. His life and career overlapped with Shakespeare's.