Donal O'Donnell

He was reported to have been one of three judges shortlisted to be the 12th Chief Justice of Ireland in July 2017, however, Frank Clarke was chosen.

O'Donnell was appointed to the Supreme Court in 2010. He appointed directly from practice to Ireland's highest court, a rare direct appointment. His appointment followed Nicholas Kearns becoming President of the High Court.

O'Donnell was a member of the Law Reform Commission from 2005 to 2012. He became a Bencher of the King's Inns in 2009.

O'Donnell's practice also extended to commercial law. He and Paul Gallagher acted for a group of tobacco companies in 2004 in challenge to a restriction of tobacco advertising. He represented the Beef Industry Development Society Ltd in a 2008 case in the ECJ which clarified the meaning of an agreement under Article 101 of the Treaty on the Functioning of the European Union.

He was called to the Irish Bar in 1982. He was then later called to the Bar of Northern Ireland in 1989. He has practised in all courts in Ireland, Northern Ireland, European Court of Justice (ECJ) and the European Court of Human Rights (ECHR). He was known for his speciality in constitutional law. He successfully represented the applicants from the Garda Síochána after the death of John Carthy in a constitutional challenge which limited the powers of investigation of the Oireachtas, which led to the unsuccessful Thirtieth Amendment of the Constitution. He acted for the State in Zappone v. Revenue Commissioners and Miss D. He was counsel for Michael Lowry at the Moriarty Tribunal.

His brother Turlough O'Donnell SC is former Chairman of the Bar Council of Ireland. He comes from a legal family, his father, The Rt. Hon Sir Turlough O'Donnell PC, was a member of the High Court of Northern Ireland and of the Court of Appeal of Northern Ireland between 1971 and 1990.

Donal John O'Donnell (born 10 April 1958) is an Irish judge who has served as a Judge of the Supreme Court of Ireland since January 2010.

He was born in Belfast, Northern Ireland, in 1958. He was educated at St. Mary's Christian Brothers' Grammar School, Belfast, University College Dublin, King's Inns and the University of Virginia. While attending University College Dublin, he won the 1978 Irish Times Debate with Conor Gearty for the UCD Law Society. He graduated from Virginia in 1983, where he wrote a research paper comparing equality under the US and Irish constitutions, supervised by A.E. Dick Howard. Janet Napolitano was also among the class of 1983.