Home / Barristers / Greg O’Mahoney

Greg O’Mahoney

Doctor of Philosophy - University of Oxford (2008)
Bachelor of Civil Law (First Class Honours) - University of Oxford (2003)
Bachelor of Laws (First Class Honours) - University of Sydney (2000)
Bachelor of Arts (First Class Honours) (English Literature) - University of Sydney (1998)


Admitted to the Bar 2010


Greg accepts briefs to appear in trials and appeals throughout Australia in all areas of commercial, corporations, transport and aviation, employment (including work health and safety prosecutions), equity, regulatory, taxation, insurance, constitutional, consumer/trade practices, sports and public law. He also appears widely (including as Counsel Assisting) in commissions of inquiry throughout Australia including corruption inquiries, Royal Commissions and coronial inquests.

Greg was Associate to Chief Justice Murray Gleeson at the High Court of Australia in 2005 to 2006.

He has a BCL and a D.Phil in Law from Oxford where he attended on a Rhodes Scholarship. He also has a BA and LLB from Sydney University.

Greg was previously a solicitor at Mallesons Stephen Jaques (now King & Wood Mallesons), working in their commercial litigation division.

He has taught part-time at both Sydney and Oxford Universities in corporations law, contract law and securities/financial markets regulation.

Principal Areas of Practice

  • Commercial Law See all +Close -
    • Administrative Law
    • Admiralty and Maritime
    • Alternative Dispute Resolution
    • Appellate
    • Arbitration
    • Aviation and Transportation Law
    • Banking and Financial Services
    • Bankruptcy and Insolvency
    • Building, Construction and Technology
    • Class Actions
    • Communications
    • Competition and Consumer
    • Conflict of Laws
    • Contracts
    • Corporations and Securities
    • Cross-border Insolvency
    • Environment and Planning
    • Insurance and Reinsurance
    • Intellectual Property
    • International Law
    • Mining resources and energy
    • Partnership disputes
    • Product liability
    • Professional liability
    • Real property
    • Restraint of trade
    • Shareholder class actions
    • Sports law
    • Superannuation
    • Trade Practices
  • Common Law See all +Close -
    • Alternative Dispute Resolution
    • Appellate
    • Class Actions
    • Defamation
    • Insurance and Reinsurance
    • Medical negligence
    • Personal Injury
    • Product liability
    • Professional indemnity
    • Professional liability
    • Sports law
  • Criminal See all +Close -
    • Appellate
    • Fraud
    • Proceeds of crime
    • White collar and corporate crime
    • Work health and safety
  • Equity See all +Close -
    • Alternative Dispute Resolution
    • Appellate
    • Property
    • Trusts
    • Wills and Estates
  • Industrial/Employment See all +Close -
    • Civil and Human Rights
    • Disciplinary Proceedings
    • Government Inquiries
    • Health Law
    • Restraint of trade
    • Work, Health and Safety Prosecutions
  • Inquests and Inquiries See all +Close -
    • Commissions of Inquiry
    • Coronial Inquests
  • Public and Administrative Law See all +Close -
    • Alternative Dispute Resolution
    • Appellate
    • Constitutional Law
    • Disciplinary Proceedings
    • Health Law
    • Judicial review and administrative law
    • Merits review
    • Native title
    • Proceeds of crime
    • Public law
  • Taxation and Revenue See all +Close -
    • Alternative Dispute Resolution
    • Appellate
    • Capital gains tax
    • Goods and services tax
    • Income tax
    • International tax
    • Land tax
    • Payroll tax
    • Stamp duty and other state taxes


Agribusiness, Banks & Financial Services, Defence, Funds, Government, Healthcare, Industrials, Transport and Infrastructure, Primary Resources, Power & Utilities, Real Estate, Technology, Media & Telecommunications,

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