Ashique Rahman > Fietta LLP > London, England > Lawyer Profile

Fietta LLP


Ashique is an Australian lawyer and counsel at Fietta LLP. Ashique represents States and foreign investors in their public international law disputes, including disputes under international investment agreements.  The Legal 500 has recognised Ashique as a “Rising Star” in public international law.  He is also named a “Future Leader” in the Who’s Who Legal guide for international arbitration.  Clients praise Ashique for understanding “key issues” in “complex investment treaty claims” and for his ability to “turn around high quality work product very swiftly”.

Ashique has managed teams of lawyers, witnesses and experts in complex, high-value arbitrations under the ICSID, ICC, LCIA, SCC and UNCITRAL Rules, including some of the most high-profile investor-State arbitrations of the past decade (e.g., Libananco v. Turkey, Koch v. Venezuela).  He also counsels on post-award remedies, including recognition and enforcement of foreign arbitral awards.   Ashique is presently representing a European State in a treaty dispute with a foreign investor, a US oil company in a treaty dispute with Kazakhstan and hundreds of foreign investors in an ICSID, multi-party arbitration against Cyprus.

Ashique also advises States, international organisations and multinational companies on a broad range of public international law topics, including the law of the sea, the law of treaties, jurisdictional immunities and the protection of foreign investments. He writes regularly on these topics and recently co-authored a peer-reviewed chapter on juridical persons and the requirements of the ICSID Convention.  He has taught at University College London and has delivered practical training in public international law and international arbitration to Ministry officials of States in the Middle East and Asia.

Prior to joining Fietta LLP, Ashique was a senior lawyer at a public international law firm in London, where he worked with Stephen Fietta and other members of the Fietta team over a number of years. He is also a founding board member of the Young Public International Law Group, a network of public international law practitioners from law firms, the bar, international organisations, governments and academic institutions around the world.


Fietta LLP, counsel (2018 onward), senior associate (2016-2018); Volterra Fietta, associate (2011-2016); University of Sydney, research assistant in public international law and investment treaty arbitration (2010-2011); Ernst & Young, consultant in the Energy and Utilities Group (2007-2008)




LLM in Public International Law (2010), University of Sydney

Admitted as a Lawyer of the Supreme Court of New South Wales, Australia (2009)

LLB (2006), University of Sydney

BSC (2003), University of New South Wales

Lawyer Rankings

London > Dispute resolution > Public international law

(Rising stars)

Ashique RahmanFietta LLP

Arguably, ‘one of the leading boutique practices in public international law‘, Fietta LLP has substantial expertise in investment treaty proceedings, maritime boundary disputes and human rights matters. The practice is regularly instructed by sovereign states, corporate, individual and NGO clients across a wide spectrum of public international law matters. Stephen Fietta QC has ‘an outstanding reputation‘ in investment treaty arbitration and often leads on high-profile and substantial claims, including acting for a large group of Greek investors in an ICSID arbitration against the Republic of Cyprus arising from the Cypriot financial crisis and European Union/IMF bail-out of 2013. Also of note are recently promoted partner Jiries Saadeh, counsel Ashique Rahman and associates Oonagh Sands and Laura Rees-Evans.

London > Dispute resolution > International arbitration

Fietta LLP ‘has a large case load and has talent from top to bottom‘. The firm is widely respected for its experience in investor-state arbitration. Stephen Fietta QC, who took silk in 2019, has secured numerous substantial awards for his state and investor clients; Jiries Saadeh and Ashique Rahman were promoted to partner and counsel, respectively. Oonagh Sands and Laura Rees-Evans are the senior associates to note.