François-Armand-Auguste de Rohan-Soubise, Prince of Tournon, Prince of Rohan (1 December 1717, Paris – 28 June 1756, Saverne) was a French prelate, Prince-Bishop of Strasbourg.

He received Holy Orders as a Catholic priest on 23 December 1741[1] and received the position of commendatory abbot first of the Abbey of Ventadour, which was succeeded by that of Saint-Epvre (in the Diocese of Toul) from 1736, and later added was that of Prince-Abbot of the Abbeys of Murbach and of Lure in 1737.

A year later he was appointed coadjutor bishop of the Diocese of Strasbourg.

He was the great-nephew of the incumbent Prince-Bishop, Cardinal Armand Gaston Maximilien de Rohan, and was simultaneously named as the titular bishop in partibus of Ptolemais in Palestine (now Acre, Israel).

Upon the death of his great-uncle in 1749, he automatically became Prince-Bishop of Strasbourg and became commendatory abbot of the great Abbey of La Chaise-Dieu that same year, giving up that of Saint-Epvre.