Pádraig Ó Ríordáin

Padraig O Riordain | Corporate Lawyer | Healthcare Law | Arthur Cox


Pádraig (52) is a senior Corporate Partner and served as Managing Partner of Arthur Cox for eight years until November 2011. He focusses on strategic corporate, M&A and governance issues. He has particular expertise in advising on regulated sectors and Irish State-related matters.

During his tenure as Managing Partner, Pádraig was named European Managing Partner of the Year and Arthur Cox was recognised as European Law Firm of the Year, Best Managed European Law Firm and Best European Corporate Citizen. He later received a Lifetime Achievement Award from Managing Partners’ Forum.

In January 2018 the Government appointed Pádraig as Chairman of the Effectiveness and Renewal Group for the Department of Justice and Equality, which issued its first report on 28 June 2018.

Pádraig was appointed as Chairman of the National Lottery in March 2018. Pádraig served as Chairman of daa plc, the Irish State airports company, for six years to January 2018. He also formerly served as non-executive director of Paddy Power Betfair plc until March 2018 and previously sat on the board of TVC plc.

Pádraig was featured as ‘Dealmaker in the Spotlight’ by the American Lawyer for his work for the Irish State on the financial aid programme provided to Ireland by the Troika of the IMF, EU Commission and ECB during Ireland’s banking crisis.

He also served as a member of the European Commission’s Insolvency Law Expert Group (ILEG), the advisory body to the European Commission on the development of an EU cross-border regulatory crisis management regime and resolution for the banking sector.

Pádraig is qualified in New York, where he practiced for six years, as well as in Ireland.


Indicative work which Pádraig has undertaken includes the following:

Lead external legal advisor to the Irish Department of Finance and NTMA throughout Ireland’s banking crisis. This work included:

  • the nationalisation and later the liquidation of Anglo Irish Bank;
  • the design and establishment of the National Asset Management Agency (NAMA);
  • the defence of the Irish State from litigation by a series of affected market participants throughout this period;
  • liability management in the Irish banks and the implementation of burden sharing with holders of subordinated debt;
  • the recapitalisations and later restructuring of the entire Irish banking sector;
  • the financial aid programme for Ireland provided by the IMF, the EU Commission, the ECB and others;
  • the preparation of the Covered Institutions (Financial Support) Act 2008, the Anglo Irish Bank Corporation Act 2009, the National Asset Management Agency Act 2009, and the Credit Institutions (Stabilisation) Act 2010.

Lead advisor to CRH plc globally on its €6.5 billion acquisition of assets from Lafarge S.A. and Holcim Limited in 12 jurisdictions. The American Lawyer awarded the transaction the Global M&A Deal of the Year: Europe for 2015.

Lead advisor to the Irish Stock Exchange on its acquisition by Euronext.

Pádraig previously advised on the initial public offerings of Paddy Power plc, eircom plc and TVC Holdings, plc.

  • LLM, 1990, Harvard Law School
  • LLM, 1989, University College Cork
  • BL, 1988, Honourable Society of King's Inns
  • BCL, 1986, University College Cork
  • Chairman, National Lottery
  • Member of the European Commission’s Insolvency Law Expert Group (ILEG)
  • Admitted, Law Society of Ireland, 2000
  • Admitted, New York Bar, 1991
  • Admitted, Bar of Ireland, 1988
  • Institute of Directors
  • Association of the Bar of the City of New York
  • The American Bar Association
  • The International Bar Association
  • The Harvard Law School Association