Nataliya Barysheva

“Nataliya Barysheva is already a point of reference for many leading names, who use her expertise for their main arbitration cases”

LegalCommunity Under40 Awards 2021


Avocat au Barreau de Paris, Nataliya Barysheva joined Mourre, Chessa, Le Lay in October 2021. She has extensive expertise in international arbitration and represents clients in international arbitrations before various arbitration institutions (ICC, ICSID, UNCITRAL, VIAC). She advises on disputes in different sectors, such as construction, oil&gas, renewable energy, mining, and international trade. Nataliya also assists clients in relation to litigation concerning the recognition, enforcement and annulment of arbitral awards. She also regularly acts as assistant to arbitral tribunals in commercial and investment arbitration cases.

Nataliya Barysheva graduated from the Université de Paris I Panthéon-Sorbonne in international business law. She also holds an LL.M from Queen Mary University of London in International Dispute Resolution and Economic Law.

Nataliya started her career as a digital legal content editor within the world’s largest legal publishing company in 2010. She is also an appointed member of the College of Legal Terminology and Neology Experts at the French Ministry of Justice since 2013. From 2015 to 2021, Nataliya practiced within a renowned French-Italian law firm.

Nataliya is a member of several professional associations, including AIPN (Association of International Petroleum Negotiators), ASA40 (Swiss Arbitration Association), CFA40 (Comité français de l’arbitrage), ICCYAF (Young Arbitrators Forum – International Chamber of Commerce), ICDR Young & International (International Centre for Dispute Resolution), RAA40 (Russian Arbitration Association), SCL (Society of Construction Law), YIAG (Young International Arbitration Group – LCIA), Young ICCA (International Council for Commercial Arbitration), Young ITA (Institute of Transnational Arbitration).

In 2021, Nataliya was recognised for her arbitration practice by LegalCommunity in Italy as “Avvocato dell’Anno Arbitrati” in the category Under 40.

A Russian and French national, Nataliya works in English, French, Italian and Russian and also has some knowledge of Spanish.

Nataliya is admitted to the Paris bar and is registered as a foreign lawyer in the Russian Federation.


Counsel in an ICSID annulment proceeding in relation to a waste management and renewable energy production project
Applicable Law: Albanian law
Seat: London
Language: English

Counsel in an ICC arbitration between an Italian company and several Iranian entities in relation to the construction of a gas facility in Iran
Applicable law: Iranian law
Seat: Geneva
Language: English

Counsel in an ICC arbitration between an Italian general contractor and an Austrian subcontractor in relation to delay and the liquidated damages due to the employer in a construction of a low-density polyethylene plant in Slovakia
Applicable law: English law
Seat: London
Language: English

Counsel in an ICC arbitration between an Italian construction consortium and a French principal in relation to the construction of an oil&gas infrastructure in France
Applicable law: French Law
Seat: Paris
Language: French

Counsel in an ICC arbitration in relation to a long-term rental contract of a hotel.
Applicable law: Tunisian law
Seat: Paris
Language: French

Counsel in an ICC arbitration between a French construction company and an Iranian entity in relation to the construction of an underground gas storage
Applicable law: Iranian law
Seat: Paris
Language: English

Counsel in an ICC arbitration between an Italian consortium and an Algerian entity in relation to the construction of a pipeline
Applicable law: Algerian law
Seat: Paris
Language: French

Counsel in an ICC arbitration in relation to a shareholder dispute in the energy sector
Applicable law: Spanish Law
Seat: Geneva
Language: English and Spanish

Counsel in an arbitration before the Foreign Trade Court of Arbitration of Belgrade in relation to a sale agreement of gas compressors
Applicable law: Serbian law
Seat: Belgrade
Language: English

Counsel in a VIAC arbitration between a Russian principal and an Italian consortium in relation to the construction of an interlocking system of a railway network in North Africa
Applicable law: Russian law
Seat: Vienna
Language: English

Counsel in several set-aside proceedings of ICC arbitral awards before the Paris Court of Appeal and Cour de cassation

Counsel in the enforcement proceedings of foreign decisions and arbitral awards before the French courts

Counsel before the French courts in several disputes between a Spanish company and French nationals in relation to the construction of photovoltaic projects

Administrative Secretary to Arbitral Tribunals in several cases (ICC, ICSID, ad hoc)



Does a Right to a Physical Hearing Exist in International Arbitration? National Report for France, ICCA Project, 2021 (with V. Chessa and A. Camillacci)

Les Brèves, in Int’l Bus. L. J., No. 2, 2020; No. 3, 2021, Thomson Reuters (with A. Musella and Ž. Filipič)

The Legal 500: International Arbitration Country Comparative Guide, France Chapter, 2020 (with V. Chessa and M. Matousekova)

France Chapter, in The International Arbitration Review, Law Business Research, 2019, Vol. 10, 189 (with V. Chessa, M. Matousekova, A. Musella); 2020, Vol. 11, 180 (with V. Chessa, M. Matousekova); 2021, Vol. 12, 165 (with V. Chessa, M. Matousekova)

Force Majeure in Energy Arbitration: Predicting the Unpredictable, 2018(2) Int’l Com. Arb. Rev. 67

Impecuniosity And Denial Of Justice: Walking On Eggshells, KluwerArbitration Blog, 16 November 2016 (with V. Chessa)

CDRC Vienna: Consensual Dispute Resolution (An Austrian and a French mediator sharing their views on their previous competition),, July 2016 (with S. Rohmann)

Institute for TRANSNATIONAL ARBITRATION – Country Reporter (France) since 2016


Webinar – ITA Arbitration Reporters Roundtable, Institute of Transnational Arbitration, 21 October 2020

ICC YAF Hot topics of 2016: Change is in the air, ICC YAF / ICDR Y&I / Young ICSID, Paris, 8 December 2016