{{ languageVal }}
  • English

Mary O'Neill

Email Icon Send an email T: +353 1 619 2105 M: +353 86 781 3376


Mary is a partner of Maples and Calder's Asset Finance team in the Maples Group's Dublin office.  Mary advises private equity investors, operating lessors, financial institutions and airlines on a wide range of asset finance structures.  These include asset backed securitisations, aviation platform establishment, warehouse financings, portfolio asset sales & purchases, operating & finance lease structures as well as export credit agency facilities.  Mary has an extensive aviation industry background having worked in this sector for many years and brings a wealth of sectoral knowledge to her role.


Mary joined the Maples Group in 2014.  Prior to that, Mary spent nine years with Citibank in their international trade division (including a secondment to South Africa), most recently working on aviation export credit agency structures. Mary started her career at Biddle & Co. in London and also worked at a large Irish law firm prior to joining Citibank.

Mary is ranked by Chambers Global, with market commentators describing her as "responsive and knowledgeable". Mary is also recognised as Highly Regarded by ILFR 1000 and as a Next Generation Partner by Legal 500.  


Member of the Law Society of Ireland

Member of 100 Women in Finance



Asset Finance


Acquisition & Leveraged Financing

Debt Capital Markets

Bar admissions

1998 - Admitted as a solicitor in England and Wales (not practising)

2000 - Admitted as a solicitor in Ireland


Trinity College Dublin, LLB, 1993

University of Cambridge, LLM, 1994

University of Cambridge, M. Phil, 1995

London School of Economics, M.Sc, 2004


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.