Stefano Venturi del Nibbio

1592–1600) 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).

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.

Also in 1600, Venturi wrote some sacred music, for two choirs, for the nuptial banquet celebrated in the Duomo on 5 October for the marriage of Henri IV of France and Maria de' Medici.

In the introduction to the book Morley praised the work, and Venturi himself, as an exemplary composer of madrigals.