Giovanni Fontana (1537 – 5 July 1611) was a Roman Catholic prelate who served as Bishop of Ferrara (1590–1611)^[1] and Titular Bishop of Nicopolis in Palaestina (1589–1590).^[2]

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Giovanni Fontana was born in Vignola, Italy in 1537.^[3] On 11 September 1589, he was appointed during the papacy of Pope Sixtus V as Coadjutor Bishop of Ferrara and Titular Bishop of Nicopolis in Palaestina^[3][4] On 11 September 1589, he was consecrated bishop by Gaspare Visconti, Archbishop of Milan, with Gerolamo Ragazzoni, Bishop of Bergamo, and Ludovico Taverna, Bishop of Lodi, serving as co-consecrators.^[3] On 7 August 1590, he succeeded as Bishop of Ferrara.^[3] He served as Bishop of Ferrara until his death on 5 July 1611.^[3]

While bishop, he was the principal consecrator of Alfonso Paleotti, Coadjutor Archbishop of Bologna (1591); and the principal co-consecrator of Orazio Giraldi, Bishop of Comacchio (1592), and Camillo Beccio, Bishop of Acqui (1599)^[3]