top of page

Our People

Matthew Kenny

Matthew Kenny - Partner

Matthew established O'Sullivan Kenny with Mark O'Sullivan in 2016 and was previously a Partner in a leading Criminal Defence Firm.

Matthew, together with Oisin Clarke BL and Mark O'Sullivan, updated a leading text on road traffic law which was released in 2019.

He has a proven track record in providing legal representation to public interest law groups and in the work of Free Legal Advice Centres. 
Matthew was awarded the Public Interest Law Association Gold Medal for his work in this area in 2013.

At present he is working with The Irish Council of Civil Liberties on their High Level Expert Working Group on providing legal advice in a Garda Station. In November 2015 Matthew co-hosted a webinar on legal updates in this area.

Matthew was chairperson of the Dublin Solicitor Bar Association (DSBA) Criminal Law Committee in 2013-2014 and has been a  member of the DSBA Council since 2014. He is on the Public Interest Law Committee of the DSBA for  2016.

  • B.A. (Hons)

  • ​Admitted as a solicitor in Ireland

  • Former Chairperson of the D.S.B.A. Criminal Law Committee

  • ​Pubic Interest Law Committee of the DSBA for 2016

  • Recipient of the Public Interest Law Association Gold Medal 2013

Mark O'Sullivan - Partner
Mark established O'Sullivan Kenny with Matthew Kenny in 2016.  He previously worked in two leading criminal law firms before setting up his own firm in 2012.  He has continued to specialise in criminal law and related areas since then. 
Mark has extensive experience in the preparation of trials for both the Circuit Criminal Court and the Central Criminal Court.
Mark has represented clients in the District Court; The Circuit Court; The Central Criminal Court; The Court of Criminal Appeal and the Supreme Court. 
He is also highly experienced in advising detainees in garda stations. 
He has successfully brought judicial review and habeas corpus proceedings on behalf of clients in the High Court.
Mark has an interest in human rights and Mental Health Law and has represented clients before the Mental Health Tribunal.
He appears daily in the District Court where he represents clients charged with all criminal and road traffic offences. 
Mark is a volunteer with the Free Legal Advice Centre (FLAC) with whom he has been working with since 2014.
  • LL.B. (Hons)

  • ​Admitted as a solicitor in Ireland

  • ​Certificate in District Court Advocacy (Law Society of Ireland)

  • ​Admitted as a solicitor in the Senior Courts of England & Wales

  • ​Member of the Dublin Solicitors Bar Association

  • ​Volunteer with the Free Legal Advice Centres (FLAC).

  • B.C.L.. (Hons)

  • Law Society of    Ireland PPC 1 2019

Darren Gray - Solicitor
Darren graduated from UCD in 2016 with a B.C.L. (honours) degree.  He has previously worked with the Irish Council for Civil Liberties on their Universal Periodic Review programme.  He has a passion for Human Rights and Criminal Law.
Darren began working with O'Sullivan Kenny LLP in 2016 and was offered a training contract in 2018.  He was admitted to the Roll of Solicitors in December 2021.
Darren currently works in the Trials Department and has experiencing of attending all Courts from the District to the Supreme Court.

bottom of page