(born David Browne,[2] 6 May 1887 – 31 March 1971[1]), was an Irish priest of the Dominican Order and a cardinal of the Roman Catholic Church.

After studying at Rockwell College, the Dominican convent at the Basilica of San Clemente in Rome, and the University of Fribourg, he was ordained to the priesthood on 21 May 1910.

Browne taught at the Dominican convent in Tallaght, Dublin, where he was Master of Novices until 1919 when he was appointed professor at the Pontifical University of Saint Thomas Aquinas, Angelicum in Rome.

He was created Cardinal-Deacon of San Paolo alla Regola by Pope John XXIII in the consistory of 19 March 1962, appointed Titular Archbishop of Idebessus on 5 April 1962, and consecrated as bishop on 19 April by John XXIII, with Cardinals Giuseppe Pizzardo and Benedetto Aloisi Masella serving as co-consecrators, in the Lateran Basilica.

His brother was Pádraig Monsignor de Brún, a notable priest, poet and scholar, and he was an uncle of Máire Mhac an tSaoi, scholar, poet, wife of Irish diplomat, writer and politician Conor Cruise O'Brien, and daughter of his sister, Margaret Browne and her husband, the Irish revolutionary and statesman Seán MacEntee.