Dominus ac Redemptor is the papal brief promulgated on 21 July 1773 by which Pope Clement XIV suppressed the Society of Jesus. The Society was restored in 1814 by Pius VII.

Pope Clement XIV, born Giovanni Vincenzo Antonio Ganganelli, was head of the Catholic Church and ruler of the Papal States from 19 May 1769 to his death in September 1774. At the time of his election, he was the only Franciscan friar in the College of Cardinals, having been a member of OFM Conventual. He is the most recent pope to take the pontifical name of "Clement" upon his election.