'Defending your rights, protecting your future'
O’Sullivan Kenny Solicitors provide expert legal advice, clear strategy and strong courtroom representation in all areas of criminal defence and civil litigation. We listen attentively, offer clear advice, robust defence strategies and tireless advocacy for our clients.
If you’ve been arrested, summoned to court or are worried about losing your licence, we understand how stressful and overwhelming this feels. With decades of experience defending clients in the District and Circuit Courts, O’Sullivan Kenny Solicitors act fast, speak plainly and work relentlessly to secure the best outcome, with complete discretion.


O’Sullivan Kenny Solicitors Core Practice Areas
Road Traffic Offences
Helping drivers avoid disqualification, fines, or criminal records.
Criminal
Defence
Defending serious allegations with strong courtroom strategy and calm expertise.
Drink & Drug Driving
Technical defence of drink and drug driving charges in Ireland.
Court Representation
Clear, experienced advocacy in the District and Circuit Courts.
Why Clients Trust
O’Sullivan Kenny Solicitors
O’Sullivan Kenny Solicitors are trusted for their depth of experience, strategic approach and consistent results in serious criminal and road traffic matters.
Immediate Legal Advice
Rapid, confidential advice when it matters most.
Courtroom Experience
Decades of courtroom experience in Dublin and beyond.
Strategic Case Preparation
Strategic preparation for every stage of your case.
Clear Communication
Clear communication at every step.
Proven Track Record
Strong reputation for results in serious legal matters.
Our Process
Before we can provide legal advice or formally take on your case, we ask that you submit some initial information for review.
Once your details are received, we will assess whether the matter is something we can assist with and determine the appropriate next step. If we are in a position to proceed, we will contact you with details of the consultation process, including consultation fees and how to arrange an appointment.
Speak directly with a solicitor from O’Sullivan Kenny Solicitors. We listen, assess your situation and advise you on next steps.
01.
Initial Call
If urgent, we attend garda stations or court without delay.
02.
Immediate Action
We prepare your defence thoroughly, keeping you informed and in control.
03.
Case
Strategy
Confident, skilled advocacy in front of the judge.
04.
Court Representation
Meet the O’Sullivan Kenny Solicitor Team
At O’Sullivan Kenny, you’ll speak directly with experienced solicitors who understand what’s at stake and how to fight for the best possible outcome.

Partner
Matthew Kenny
Matthew Kenny is a past President of the Dublin Solicitors Bar Association and served for eleven years on their council. He also served for three years on the council of the Law Society and is a member of the Dublin Solicitors Bar Association and the Galway Bar Association.

Partner
Mark O'Sullivan
Mark has extensive experience representing clients at every level of the Irish courts, from the District Court to the Supreme Court. Known for his meticulous preparation and courtroom advocacy, he specialises in serious criminal and road traffic cases.

Solicitor
Darren Gray
Darren specialises in criminal law and human rights. He works in O’Sullivan Kenny Solicitors' trials department, regularly representing clients in the District Court and Children’s Court. He's known for his attention to detail and advocacy skills.
30+ Years of Criminal Defence Experience
24/7 Response on our Emergency Line
Regular Representation in Dublin District & Circuit Courts
1000s of Successful Cases Defended
Don't Wait. Early Legal Advice Makes All the Difference.
Whether you’ve been arrested, charged, or received a court summons, we’re ready to help. Early action can protect your future.

The Capel Building, Suite 203,
Mary's Abbey,
Dublin 7,
D07 DK11
Ireland
Contact us here for non-urgent enquiries. You will hear back on the next working day at the latest. For urgent queries call
+353 (1) 4444 813.
Office Opening Hours
Mon - Fri
Saturday
Sunday
8:00 am – 8:00 pm
Closed
Closed
Client Testimonials
Mark O’Sullivan is a very kind and professional solicitor. He represented for me on the court and the case finally had a very positive outcome. In the past seven months, he and Matthew Kenny made great efforts for my case. They always replied and explained with patience, dedication, and professionalism. I do not know how to express my appreciation for their help.They had changed my fate and I can continue to pursue my study in Ireland. Thanks for everything they have did.
(F.N. December, 2020)
I am a US citizen who fortunately was referred to Matthew Kenny as a bright barrister in Dublin, Ireland who could assist me with a defence case involving my family who were traveling on vacation. He is a great communicator and very knowledgeable about Irish law. We were very fortunate to have him on our team.
(J.F.)
"I have been a client of Matthew Kenny and Mark O'Sullivan for a very long time now. And every case I ever had which was a lot they have gone above and beyond to get the best possible outcome and never failed me. Every Case they represented me in, I was at ease. The fact I knew they would fight 100 percent full heartedly and I truly could not say enough good things about them thanks to O Sullivan and Kenny and all the hard work, long hours, great advice they have given me also for every single time putting their all into my cases I will be forever grateful for what they have done for me. I do highly recommend them because what I have wrote is what you will get and you couldn't be in better hands that's from years of experience and many cases over the years I honestly only could ever have great things to say about them and I could go on all day but I leave it all that .. and thanks Mark and Matthew for everything I will always be grateful"
(K.G.) January 2020
Very serious and professional firm. Highly recommended
(A.M.)
Mark O’Sullivan is an astute solicitor offering very precise, well thought through legal advice. He has the ability to explain complex issues in a clear concise manner which makes dealing with him a pleasure. He goes above and beyond expectations to help you and his fees are transparent and very fair fees from the onset. I can highly recommend Mark for legal advice and court room representation.
(Practicing Accountant 15.01.2020)
Very positive experience and very happy with the results. Would refer anyone to them!
(R.D.)