The Nice Valour, or The Passionate Madman is a Jacobean stage play of problematic date and authorship. Based on its inclusion in the two Beaumont and Fletcher folios of 1647 and 1679 and two citations in 17th-century sources, the play has long held a place in the canon of John Fletcher and his collaborators. Modern scholarship, however, has accumulated much internal evidence for the authorship of Thomas Middleton.