Dermot Patrick O’Mahony was born on February 18, 1935 in Enniskillen, Ireland, and died on December 10, 2015,
He was a Roman Catholic bishop.
He was ordained to the priesthood on May 29, 1960.
O’Mahony was appointed titular bishop of Thiava and auxiliary bishop of the Roman Catholic Archdiocese of Dublin, on 13 February 1975.
Dermot was ordained bishop on April 13, 1975.
The Bishop resigned on June 7, 1996.
Dermot Patrick O’Mahony passed away at 80 yrs old.