Hannah Ambrose

Herbert Smith Freehills


Hannah is a Partner and solicitor advocate in the international arbitration and public international law group.

Hannah advises clients and colleagues globally on complex issues relating to commercial and investment arbitration, dispute resolution, enforcement of awards and judgments, and public international law.

Hannah has acted as counsel in ad hoc commercial arbitrations and proceedings under the auspices of major arbitral institutions, including the ICC, LCIA and SCC. She has acted as counsel on a number of investment treaty claims, and advised clients on investment structuring. She also has experience in advising on a range of other public international law matters, including state immunity, immunity of international organisations, and boundaries. She works across a number of sectors, including energy, mining, pharma and financial institutions and banks.

Hannah is listed as a Next Generation Partner in International Arbitration and Public International Law categories in Legal 500 UK, 2023 and “Up and Coming” in Chambers and Partners 2024 for Public International Law, who state that “Hannah Ambrose is recognised as an up-and-coming practitioner in the field of PIL and investor-state arbitration. She has a breadth of experience assisting clients with international commercial disputes and conflict-related policy advice”.

Hannah is a member of the City of London Law Society’s International Arbitration Committee.

Hannah is a member of the firm’s steering committee for our pro bono international development project, Fair Deal Sierra Leone, and is on the steering group of the UK-Sierra Leone Pro Bono Network.

Hannah is a trustee of The International Lawyers Project, a leading international charity advancing economic justice and the rule of law through provision of pro bono legal expertise to civil society, parliaments and communities.