Michael Tierney may refer to:
Michael Tierney (30 September 1894 – 10 May 1975) was Professor of Greek at University College Dublin (UCD) from 1923 to 1947 and President of UCD between 1947 and 1964, and was also a Cumann na nGaedheal politician.
Tierney was born in 1894 in Ballymacward, County Galway. He was educated at UCD where he won a National University of Ireland (NUI) travelling studentship. He studied classics at the Sorbonne, Athens and Berlin. He was appointed to a lectureship in classics in 1915 and to the Professorship of Greek in 1923.
Tierney was elected a Cumann na nGaedheal Teachta Dála (TD) for Mayo North in a by-election in 1925 and for the NUI constituency in 1927, a seat he held until 1932.
Tierney came to corporatism through a study of Catholic social thought, and through an analysis of continental systems of corporatism, particularly those of Portugal and Austria. He was an early member of the Army Comrades Association (later known as the Blueshirts) and, along with Ernest Blythe, encouraged Eoin O'Duffy to become the leader. Tierney suggested the name "Fine Gael" for the new coalition between his party, the Centre Party and the Blueshirts.
Michael Tierney (September 29, 1839 – October 5, 1908) was an Irish-born prelate of the Roman Catholic Church. He served as Bishop of Hartford, Connecticut from 1894 until his death in 1908.
Michael Tierney was born in Ballylooby, County Tipperary, to John and Judith (née Fitzgerald) Tierney. At age eight he and his parents came to the United States, where they settled at South Norwalk, Connecticut. He studied at St. Thomas Seminary in Bardstown, Kentucky, and at St. Joseph's Seminary in Troy, New York. He was ordained to the priesthood on May 26, 1866.
Returning to Connecticut, Tierney was then named chancellor of the Diocese of Hartford and rector of the cathedral. He was then served as pastor of St. Mary of the Star Church in New London until 1872, when he was transferred to St. John's Church in Stamford. He became rector of St. Peter's Church at Hartford in 1877, and later pastor of St. Mary's Church at New Britain in 1883.
On December 2, 1893, Tierney was appointed the sixth Bishop of Hartford by Pope Leo XIII. He received his episcopal consecration on February 22, 1894 from Archbishop John Joseph Williams, with Bishops Matthew Harkins and Thomas Daniel Beaven serving as co-consecrators, at Hartford. During his 14-year-long tenure, Tierney founded a preparatory seminary; St. Mary's Home for the Aged; St. John's Industrial School; the hospitals at Hartford, New Haven, Bridgeport, Waterbury, and Willimantic; and numerous charitable institutions conducted by the Sisters of the Holy Ghost and the Little Sisters of the Poor. He also established a diocesan missionary band to preach retreats to Catholics and non-Catholics alike. At the time of his arrival in Hartford, there were 98 parishes, 204 priests, and 48 parochial schools; by the time of his death, there were 166 parishes, 300 priests, and 76 parochial schools.