Stefano Venturi del Nibbio was an Italian composer of the late Renaissance, active in Venice and Florence. In addition to composing madrigals in a relatively conservative style, works which were published as far away as England, he collaborated with Giulio Caccini on one of the earliest operas, Il rapimento di Cefalo (1600). Very little is known about Venturi del Nibbio's life. In 1592 he was in Venice, presumably to supervise the printing of his first two books of madrigals (Il primo libro de madrigali, and Il primo libro de madrigali pastorali, both for five voices), and in 1593 or 1594 he moved to Florence. After 1594 his known musical connections are all Florentine, and no unambiguous mentions of his name after 1600 have yet been found.