Jean Duval, OCD (22 April 1597 – 10 April 1669) was a Discalced Carmelite and a Roman Catholic prelate who served as the second Bishop of Baghdad (1638–1669) and Bishop of Ispahan (1638–1669).^{[1][2][3][4][5][6]}

Jean Duval was born in Clamecy, France on 22 April 1597 and was ordained a priest in the Order of Discalced Carmelites.^[2] On 16 August 1638, he was appointed during the papacy of Pope Urban VIII as Bishop of Baghdad.^[1][2] On 22 August 1638, he was consecrated bishop by Giovanni Battista Maria Pallotta, Cardinal-Priest of San Silvestro in Capite, with Antonio Severoli, Archbishop of Dubrovnik, and Tommaso Carafa, Bishop Emeritus of Vulturara e Montecorvino, serving as co-consecrators.^[2] On 25 September 1638, he was appointed during the papacy of Pope Urban VIII as Bishop of Ispahan.^[1][2] He served as Bishop of Baghdad and Bishop of Ispahan until his death on 10 April 1669.^[1][2]