Hugh OâÂÂReilly (1724âÂÂ1801) was an Irish Catholic bishop.
OâÂÂReilly was appointed the Coadjutor Bishop of the Diocese of Clogher in Ireland on 27 April 1777. He was ordained a bishop on 29 July of that same year. He became Roman Catholic Bishop of Clogher on 28 March 1778, following the death of his predecessor, Daniel O'Reilly. Ordained a bishop at the age of 38, Hugh OâÂÂReilly was the youngest bishop of the diocese in modern times. He died in office in on 3 September 1801 having served as bishop of his diocese for almost twenty-four years. OâÂÂReilly was succeeded by Bishop James Murphy, who had was appointed his Coadjutor Bishop in May 1798. He is buried in the old Magheross graveyard in Carrickmacross.