William Michael Cosgrove (November 26, 1916 – December 11, 1992) was an American prelate of the Roman Catholic Church.
Cosgrove was ordained to the priesthood for the Diocese of Cleveland by Archbishop Edward Francis Hoban on December 18, 1943.
[1][2] On June 12, 1968, Cosgrove was appointed as an auxiliary bishop of the Diocese of Cleveland and titular tishop of Trisipa by Pope Paul VI.
[1][2] Cosgrove was named the fourth bishop of the Diocese of Belleville on August 30, 1976, by Pope John Paul II.
[1][2] The author Michael Gallagher described Cosgrove as a man of deep social concern who was popular with both clergy and laity.