Die verwandelten Weiber, oder Der Teufel ist los, erster Teil (The Metamorphosed Wives, or The Devil to Pay, Part 1) is a three-act 'comische Oper' by the German composer Johann Adam Hiller, incorporating 14 musical numbers from the popular farce Der Teufel ist los by Johann Georg Standfuss.
The libretto was by Christian Felix Weiße (1726–1804) based on the ballad opera The Devil to Pay, or The Wives Metamorphos'd by Charles Coffey (1731), and an opéra comique text by Michel-Jean Sedaine using the same material.
The opera was first performed at the theatre in Quandt's Court, Leipzig on 28 May 1766.