Alfonso Rossetti (died 1577) was a Roman Catholic prelate who served as Bishop of Ferrara (1563âÂÂ1577) and Bishop of Comacchio (1559âÂÂ1563).
On 22 October 1548, Alfonso Rossetti was appointed during the papacy of Pope Paul III as Coadjutor Bishop of Comacchio. He succeeded to the bishopric on 21 December 1559. On 8 October 1563, he was appointed during the papacy of Pope Pius IV as Bishop of Ferrara. He served as Bishop of Ferrara until his death on 25 February 1577.