O'Brien (1933 – 14 November 2014) was an Irish Roman Catholic priest who was also a noted hurling coach and manager.
Born in Innishannon, County Cork, O'Brien was ordained into the priesthood in 1958.
Over the next forty-five years he ministered in both Ireland and the United Kingdom, while also serving as a teacher at St.
Finbarr's College and chaplain to the Irish Navy.
O'Brien retired from active ministry in 2003.
Concurrently with his duties as a priest, O'Brien was heavily involved as a hurling coach at colleges, university, club and inter-county levels.
His biggest success came with Cork, whom he steered to two All-Ireland titles, four Munster titles and one National Hurling League title.