Ercole Rangoni (died 13 February 1650) was a Roman Catholic prelate who served as Archbishop of Conza (1645âÂÂ1650) and Bishop of Sant'Angelo dei Lombardi e Bisaccia (1622âÂÂ1645).
On 2 May 1622, Ercole Rangoni was appointed during the papacy of Pope Gregory XV as Bishop of Sant'Angelo dei Lombardi e Bisaccia. On 17 May 1622, he was consecrated bishop by Maffeo Barberini, Cardinal-Priest of Sant'Onofrio, with Cosimo de' Bardi, Bishop of Carpentras, and Aloysius Galli, Bishop of Ancona e Numana, serving as co-consecrators. On 24 April 1645, he was appointed during the papacy of Pope Innocent X as Archbishop of Conza. He served as Archbishop of Conza until his death on 13 February 1650.