Thomas O'Dea, Bishop of Clonfert and Bishop of Galway, 7 January 1858 - 9 April 1923.
O'Dea was born in Carron, Kilfenora, County Clare, and educated in Ennis and Maynooth. He was ordained on 25 June 18982 for the Diocese of Galway. He was a member of staff at St. Patrick's, Maynooth, from the date of his ordination; he served as Vice-President from 1894.
O'Dea became Bishop of Clonfert on 16 June 1903, replacing Dr. Healy. He became Bishop of Galway on 29 April 1909. His plans to build a new cathedral for the town were interrupted by World War I. He was a fluent Irish speaker and a supporter of the G.A.A..
He was firstly buried in St. Patrick's Pro-Cathedral of Galway, but later re-interred in the crypt of the new Cathedral of Our Lady Assumed into Heaven and St. Nicholas, Galway.