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Timothy C. Smyth

Timothy C. Smyth

Senior Associate

Timothy Smyth advises sovereign states, multinational corporations, and high-net worth individuals in relation to international arbitration and public international law disputes. His experience includes representing clients in arbitrations under a wide range of arbitral rules, including ICSID, UNCITRAL, the LCIA, ICC, DIFC-LCIA, and before the Iran-U.S. Claims Tribunal. Timothy also has experience of cases before the International Court of Justice, General Court of the EU, and the High Court of Justice in London. Timothy has advised clients from all over the world in a variety of different sectors, including energy, mining, banking, hospitality, telecoms, aviation, and pharmaceuticals. Timothy has conducted oral advocacy in investment treaty arbitrations, commercial arbitrations, and before the High Court of Justice in London.

The Legal 500 UK (2021-2024) has recognised Mr. Smyth as a “Rising Star” in the field of Public International Law. He is also recognised as a “One to Watch” by for both International Arbitration and Energy & Natural Resources Law, and as a “Future Leader” in Arbitration by Who's Who Legal (2024), which describes him as “a rising star”, “well-versed in investor-state disputes” and “one to watch in the investment treaty space”.


  • The Republic of Turkey in an investor-state arbitration brought by Akfel Commodities Pte. Ltd. and I-Systems Global B.V. (ICSID).
  • The Republic of Peru in an investor-State arbitration in the precious metals sector brought by a US commodities trading company (ICSID).
  • The Republic of Peru in an investor-State arbitration in the mining sector brought by a Canadian mining company (ICSID).
  • The Republic of Bulgaria in an Energy Charter Treaty arbitration in the electricity sector (ICSID).
  • The Kingdom of Thailand in an investor-state arbitration involving the mining sector brought by an Australian mining company (UNCITRAL).
  • The Republic of Bulgaria in the successful defence of investment treaty claims brought by a middle eastern sovereign wealth fund in relation to its investment in a major bank (ICSID).
  • The Republic of Costa Rica in the successful defence of an investor-State arbitration relating to gold mining rights (ICSID).
  • Middle Eastern State in an investor-State arbitration relating to a telecoms license (UNCITRAL).


Arnold & Porter Secures Another Complete Victory for Republic of Peru in International Arbitration
The Legal 500 UK 2024 Recognizes 37 Arnold & Porter Lawyers, 15 Practices
The Arbitral Process
Speaker, Durham University International Arbitration Summer School
Best Lawyers in the United Kingdom 2024 Recognizes 14 Arnold & Porter Attorneys
Investment Arbitration and Armed Conflict
Presenter, Durham International Dispute Resolution Institute Conference 2022 ‘The Trends and Challenges in the International Dispute Resolution’


Who's Who Legal
Arbitration — "Future Leader" (2024)
The Legal 500 UK
"Rising Star" Public International Law (2021-2024)
International Arbitration (2023)
Best Lawyers in the UK
"Ones to Watch" Energy and Natural Resources Law (2023-2024)
"Ones to Watch" International Arbitration (2023-2024)



  • Legal Practice Course, BPP University Law School, 2011, with distinction
  • Graduate Diploma in Law, BPP University Law School, 2010, with distinction
  • B.A., Durham University, 2008


  • England and Wales


  • Honorary Member of the Institute of Commercial and Corporate Law, Durham University