William Otterwell Ignatius Brady (February 1, 1899 – October 1, 1961) was an American prelate of the Roman Catholic Church.

[1] He continued his studies at St. Mary's Seminary in Baltimore (1918–1920) and at the Theological College of The Catholic University of America in Washington, D.C.

[1] While at the Sulpician Seminary, Brady accepted an offer from Archbishop Austin Dowling to join the Roman Catholic Archdiocese of Saint Paul in Minnesota.

[4] On June 10, 1939, Pope Pius XII appointed Brady bishop of the Roman Catholic Diocese of Sioux Falls in Sioux Falls, South Dakota, and he was ordained a bishop on August 24, 1939, by Archbishop John Gregory Murray at the Cathedral of St. Paul in St. Paul, Minnesota.

[citation needed] On June 16, 1956, Pope Pius XII appointed Bishop Brady Coadjutor Archbishop of St. Paul, Minnesota.

Several times he rallied and spoke of wanting to get back to work, but over eight days he had four heart attacks, the last of which brought about his death on October 1, 1961.

[10] Efforts to name a new facility after Brady have fallen short, as his relationship with the priests in the Diocese were not on good terms while he served as Archbishop.