Michael O'Carroll C.S.Sp., was an Irish spiritan priest, writer, and teacher. Born Michael John Carroll, in Newcastle West, County Limerick in 1911, his father was a member of the RIC.
Educated in Blackrock College, Dublin, where he met John Charles McQuaid, Holy Ghost Novitiate in Kimmage Manor, and at University College Dublin (BA in Philosophy and H. Dip. in Education). Fr. O'Carroll spent three years studying theology at the Dominican University of Fribourg in Switzerland, earning a Doctorate in Divinity. O'Carroll went back to teach French, Latin, English, History and Religion in Blackrock College.
A contributor for the Catholic Standard newspaper, O'Carroll wrote every editorial that appeared in the paper for 14 years and during the Second Vatican Council, he commented on the debates and decisions of the Council for the newspaper.
In 1995 O'Carroll was awarded an Honorary Doctorate in Theology by the Pontifical University of Maynooth.
Michael's older brother Patrick F. O'Carroll DD also became a Holy Ghost priest, serving as Provincial of the order, and also worked as a professor in the United States.
O'Carroll was a noted mariologist and ecumenist, being involved inter-christian dialogue through The Mercier Society and Catholic Jewish dialogue through The Pillar of Fire Society.
He died on January 12th, 2004 after a long illness and Community Grave at Shanganagh Cemetery.