Thomas Francis Cusack was an American clergyman of the Roman Catholic Church.
Cusack, Thomas Francis was born on February 22, 1862 in New York, United States. Son of James and Honora (Boland) Cusack.
He then attended St. Francis Xavier's College, from where he graduated in 1880.
He served as Bishop of Albany from 1915 until his death in 1918. His childhood was spent on the Lower East Side, and he made his early studies at the parochial school of St. James Church. His theological studies were made at St. Joseph's Seminary in Troy, where Cusack was ordained to the priesthood on May 30, 1885.
His first assignment was to St. Teresa's Church, where he remained until he was named pastor of St. Peter's Church in Rosendale in 1890. In 1897, he resigned his pastorate to organize the Archdiocesan Mission Society, of which he was also made superior. During the Spanish–American War, he served as chaplain at Camp Chickamauga in Georgia.
On March 11, 1904, Cusack was appointed auxiliary bishop of New York and titular bishop of Themiscyra by Pope Pius X. He received his episcopal consecration on the following April 25 from Archbishop John Murphy Farley, with Bishops Charles H. Colton and James Augustine McFaul serving as co-consecrators, in St. Patrick's Cathedral. In addition to his episcopal duties, he served as pastor of St. Stephen's Church from 1904 to 1915. Cusack was named the fifth Bishop of Albany by Pope Benedict XV on July 5, 1915.
He remained in this post for three years, when he died at the age of 56.