Mariya 2

Mariya Peykova

Year of Call: 2013
Email Address:
Telephone: 0330 332 2633

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Mariya Peykova completed her pupillage with 3PB in October 2020 and is currently undertaking work in a wide range of 3PB’s core areas of practice, with a particular focus and interest in commercial and public law. She is qualified to practise law in the state of New York, and is keen to develop an international practice.

Prior to joining chambers, Mariya was Judicial Assistant to the Rt. Hon. Lord Justice Leggatt (as he then was) and Lady Justice King DBE at the Court of Appeal. She was also Judicial Assistant to the Hon. Mr Justice Stewart, assisting on the Kenya Emergency Group Litigation, a long-standing trial involving allegations of abuse against the UK government during the Mau Mau insurgency in Kenya.  Before applying for pupillage Mariya was a Research Fellow at Queen Mary University, where she worked with Professor Rafael Leal-Arcas on his WiseGrid project funded by the EU Commission’s Horizon 2020 programme, and has contributed to a number of academic publications.

Mariya previously worked as a legal consultant at the International Bar Association, where she undertook work in the field of international law, with a specific focus on international criminal and human rights law.

After being called to the Bar, Mariya was awarded a scholarship by Gray’s Inn to undertake a placement with Judge Silvia Fernandez de Gurmendi, former President of the International Criminal Court, where she carried out legal research in the fields of international criminal and human rights law, and provided assistance to the judiciary by drafting the orders and judgments of the Chamber. She also worked as an intern at the Office of MEP Ivailo Kalfin, at the EU Parliament in Brussels.

Academic publications   

'The great energy transition in the European Union: Volume 2',  Rafael Leal-Arcas et al, Eliva Press, 2020

'Towards a Carbon-Free, Decentralised, and Democratised System of Energy Generation', Rafael Leal-Arcas, Andrew Fillis, Mariya Peykova, Marius Greger, Connecticut Journal of International Law, Volume 35, 133.

'Towards a carbon-free, decentralised, and democratised system of energy generation' - Journal of International Law, Vol 35, Issue 1, 2020 (Forthcoming), Queen Mary University of London, School of Law Legal Studies Research Paper No 319/2019

'Decarbonizing the Energy Sector' - Michigan State Journal of Animal and Natural Resource Law, 2019 (Forthcoming), Queen Mary School of Law Legal Studies Research Paper No. 309/2019

'The ICC Reparations regime: The future of international criminal justice or an empty promise?' Gray’s Inn Student Law Journal, November 2015.

'Energy Transit: Intergovernmental Agreements on Oil and Gas Transit Pipelines', Rafael Leal-Arcas, Mariya Peykova, Tathagata Choudhury and Malakee Makhoul, Renewable Energy Law and Policy Review, 2015.

'Energy Transit Activities: Collection of Intergovernmental Agreements on oil and gas transit pipelines and commentary', Co-authored with Professor Rafael Leal-Arcas, Report prepared for the Energy Charter Secretariat Knowledge Centre, July 2014, Queen Mary University of London, School of Law Legal Studies Research Paper No. 177/2014

Pro Bono  

Mariya provides pro bono legal assistance through Advocate and has previously volunteered with Reprieve and the National Council of Civil Liberties (‘Liberty’). During her time at Reprieve, Mariya worked closely with the Director of the Death Penalty Team on a long-standing project aimed at ending the export of EU drugs used in the production of lethal injections in the United States. Mariya also assisted with a campaign to end the death penalty for drug-related offences in Vietnam, and undertook legal research on matters relating to the rights of EU individuals on death row in non-EU states. During her time at Liberty, Mariya assisted the legal team by drafting advice letters in relation to claims against the police and other public bodies.


  • Greek (native)
  • Bulgarian (native)
  • French (intermediate)

Public and Regulatory

Mariya is able to accept instructions through HM Government’s Junior Junior scheme.

Public International law   

Mariya has an established expertise and interest in the areas of international economic law, particularly in the field of energy, and international human rights. In her role as legal consultant she worked closely with Dr. Mark Ellis (Executive Director of the International Bar Association), assisting with an investigation into the compliance of the Libyan regime trials with international human rights law, and providing research assistance in relation to various publications in the field of international criminal law.

She previously consulted an international Task Force of IBA lawyers on its report on the independence of the legal profession around the world, published in 2016.

Her work in international human rights law also includes undertaking research related to a claim for reparations brought by the Herero and Nama people against the German state.


  • Articles
    • Ghost Towns and International Law: The Admissibility of Turkey’s Attempt to Re-Open Varosha

      3PB’s specialist international and public law barrister Mariya Peykova has reviewed the decision of Turkey’s attempt to re-open Varosha.

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    • The Use of Police Tactics To Disperse Protests and The Fine Line Between Legitimate Protesting and Anti-Social Behaviour

      3PB’s pupil barrister Mariya Peykova has reviewed the use of police tactics to disperse protestors and the fine line between protesting and anti social behaviour.

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    • Protesting During a Pandemic: What Are Your Rights?

      3PB pupil barrister Mariya Peykova has reviewed the rights during this Covid-19 pandemic for citizens to participate in a protest, the police arrest and stop-and search powers, the scale of fines and penalties and what people should be doing if you are arrested and taken to a police station.

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    • Coronavirus Act 2020 & Rights of Individuals

      Mariya Peykova, a pupil barrister at 3PB reviews the powers of public health officers, constables and immigration officers and how the newly imposed laws will affect the rights of any individual infected with Covid-19.

      View Article
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Academic qualifications

  • LL.M in Public International Law,  Centre for Commercial Law Studies, Queen Mary University of London 2012
  • LL.B (Hons), Queen Mary University of London, 2011


  • Overseas Internship Scholarship (International Criminal Court) , Gray’s Inn
  • Graduate Association Award, The Grammar School, Nicosia
  • Ioannis and Iro Gregoriou Memorial Scholarship (7 consecutive years), Nicosia
  • Edexcel High Achiever Award, the Grammar School, Nicosia

Professional qualifications & appointments

  • New York Attorney-At-Law, Admitted in 2019
  • Bar Professional Training Course, University of Law, 2013

Professional bodies

  • International Bar Association