{{ languageVal }}
  • English

Alan O'Sullivan

Email Icon Send an email T: +353 1 619 2060 M: +353 87 650 6465


Alan is a partner in the firm's Commercial Litigation and Dispute Resolution Department. Alan specialises in banking litigation, lender enforcement (particularly receivership), insolvency and restructuring, shareholder disputes and commercial property matters. Alan acts for financial institutions, insolvency practitioners, private equity funds, bondholders, asset managers, wealth management firms and property holding and development companies. Alan has extensive experience in litigating matters in the Irish Superior Courts particularly the Commercial Court and Court of Appeal. Alan also specialises in alternative dispute resolution including in particular mediation and arbitration. Alan is a CEDR Accredited Mediator.


Alan joined the Maples Group as a partner in 2018. Prior to that Alan worked for other large commercial law firms in Dublin and London. Alan also previously worked as inhouse counsel from 2010 to 2013 and during that time was Head of Litigation of the IBRC Group.

Alan has been recommended for Dispute Resolution in both Chambers Europe and Chambers Global, and by the Legal 500. In Chambers Europe, Alan is described by clients as being "very commercial, proactive and responsive". Another client attested that "he sees all the detail and provides it. He took the upfront time and made the matter easier to resolve". Alan is recommended by the Legal 500 as "an experienced figure in banking litigation, commercial litigation, lending enforcement and contentious insolvency".  


Irish Society of Insolvency Practitioners

Dublin Solicitors Bar Association

Centre for Effective Dispute Resolution (London)


Dispute Resolution & Insolvency


2007 - Admitted as a solicitor in England & Wales (non-practising)

2002 - Admitted as a solicitor in Ireland


Centre for Effective Dispute Resolution (London), Accredited Mediator 2023

Chartered Institute of Arbitrators (CIARB), Diploma in International Commercial Arbitration, 2007

University College Dublin, LLM (Commercial), 1999

University College Dublin, BCL, 1998


For expert advice, contact us today – we’d love to hear from you. Please fill in the form and we will contact you as soon as possible.

Please note that your email may be received and read by other Maples Group employees in addition to your intended recipient. The use of this form does not create an attorney-client relationship and information submitted will not necessarily be treated as privileged or confidential, nor will it prevent us from accepting related instructions on behalf of others. Do not send us any information regarding any current or potential legal matters until your proposed engagement of us as legal counsel has been agreed and confirmed by us in writing.