with integrity and impartiality
Addressing worldwide
disputes
A seasoned international arbitrator with two decades of navigating complex legal terrains. Committed to delivering precise, impartial resolutions across global commercial landscapes.
Arbitration expertise at a glance
Two decades of resolving international disputes with precision and strategic depth. Delivering impartial resolutions across complex legal landscapes.
120
+
Cases as Arbitrator
Experience as sole arbitrator, co-arbitrator, and presiding arbitrator
120
+
Years of experience
Deep expertise in international legal practice as arbitrator and counsel
120
+
Cases as counsel
Arbitrations under major institutional rules
120
Languages spoken
Ukrainian, Russian, English, Spanish, German, French
120
+
Institutions
Broad experience across diverse institutional and ad hoc frameworks
120
+
Industries expertises
Energy, construction, trade, finance, technology and more
Considering a neutral arbitrator?
Review my experience and case library, or contact me directly regarding potential appointments.
Education
2021-2025
PhD in Law, The Academician F.H.Burchak Scientific Research Institute of Private Law and Entrepreneurship, National Academy of Legal Sciences of Ukraine, Kyiv
2014-2015
ICC Advanced Arbitration Academy for Central & Eastern Europe, Paris
2013-2014
Diploma in International Arbitration, Chartered Institute of Arbitrators (CIArb), London
1999-2005
Master of International Law with Honours, School of International Law, Institute of International Relations, Taras Shevchenko National University of Kyiv
Current PositionS and Professional Appointments
Since 2015
impacta law
Partner, Head of Arbitration Practice
Since 2025
IBA Arbitration Committee
Since 2021
Ukraine’s National Bar Association
Since 2024
Ukrainian Arbitration Association (UAA)
Since 2023
Arbitration Association of Central and Eastern Europe (ArbCEE)
Since 2023
Turkic Arbitration Association (TAA)
Since 2024
ICA CCI KR
Since 2018
ICC Commission on Arbitration and ADR
Since 2019
Global Steering Committee of the ERA-PLEDGE
Since 2021
Editorial board of ICC Dispute Resolution Bulletin
12th Cycle, 2025-2026
Young ICCA Mentoring Program
Since 2026
Kyiv National Economic University
Past PositionS and Professional Appointments
- President, Ukrainian Arbitration Association (2016-2024)
- Court Member, ICC International Court of Arbitration (2018-2024)
- Court Member, TIAC Court of Arbitration (2019-2022)
- Vice-President, Board Member, Chair of Arbitration Commission, ICC Ukraine (2022-2024)
- Co-chair, Eastern Europe Group of the IBA Arbitration Committee (2025)
- Mentor, Young ICCA Mentoring Program (10th Cycle, 2023-2024)
- Lecturer, Master program “International Litigation”, Institute of International Relations, Taras Shevchenko National University of Kyiv (2020)
- President, Polish-Ukrainian Chapter, Spanish Arbitration Club (2018-2020)
- Co-head of arbitration/Counsel, Sayenko Kharenko (2011-2015)
- Senior Associate/Associate, Vasil Kisil & Partners (2003-2011)
Arbitration Experience
As arbitrator
Dr. Olena Perepelynska has served as arbitrator in over 120 commercial and investment treaty arbitrations seated in Almaty, Bishkek, Kyiv, London, Lviv, Minsk, Paris, Montreal, Stockholm, and Vienna under the Rules of ICC, LCIA, SCC, ICAC at UCCI, IAC at BelCCI, ICA at CCI KR, Atameken, Vienna Arbitration Rules, and UNCITRAL Arbitration Rules.
Applicable laws included CISG, Austrian, Belarusian, Czech, English, Kazakh, Kyrgyz, Quebec, Ukrainian, and Uzbek law.
Selected Arbitrator Experience:
- Sole arbitrator in UNCITRAL arbitration seated in Switzerland (construction)
- Presiding arbitrator in UNCITRAL arbitration seated in Bishkek (food retail sector)
- Co-arbitrator in UNCITRAL construction arbitration seated in Vienna
- Co-arbitrator in investment-treaty arbitration under the UNCITRAL Arbitration Rules
- Presiding arbitrator in ICC arbitration seated in Montreal (technology sector)
- Co-arbitrator in ICC arbitration seated in Kyiv
- Presiding arbitrator in LCIA arbitration between European and Central Asian parties (energy sector)
- Sole arbitrator in VIAC arbitration between CEE and Central Asian parties (pharmaceutical sector)
- Presiding arbitrator in arbitration seated in Bishkek under the ICA CCI KR Arbitration Rules (transportation)
- Sole arbitrator in insurance arbitration seated in Bishkek under the ICA CCI KR Arbitration Rules
- Sole arbitrator in arbitration seated in Bishkek under the ICA CCI KR Arbitration Rules (financial services)
- Co-arbitrator in ATAMEKEN arbitration under a sale contract between two Kazakh parties (office equipment industry)
- Presiding arbitrator in IAC at BelCCI arbitration seated in Minsk between Belarusian and Lithuanian parties (FMCG sector)
- Co-arbitrator in IAC at BelCCI arbitration seated in Minsk regarding procurement procedure disputes between the CIS parties in energy sector
- Co-arbitrator in a complex construction arbitration seated in Minsk under the Arbitration Rules of the IAC at BelCCI between a Balkan Contractor and a Belorussian state entity
- Presiding arbitrator in ICAC at UCCI arbitration seated in Kyiv (banking sector)
- Sole arbitrator ICAC at UCCI arbitration seated in Lviv (military and defence sector)
- Presiding arbitrator in ICAC at UCCI arbitration seated in Kyiv (aviation sector)
- Co-arbitrator in ICAC at UCCI arbitration seated in Kyiv in energy sector
- Co-arbitrator in ICAC at UCCI arbitration seated in Kyiv between Spanish and Ukrainian parties (agribusiness)
As Counsel
Over 110 arbitrations under ICC, LCIA, SCC, DIS, MKAS, ICAC, MAC, GAFTA, FOSFA, LMAA, CAS, Swiss Rules, Vienna Rules, and UNCITRAL Rules.
10% of cases were ad hoc arbitrations under Swiss or English law, or UNCITRAL Rules.
Disputes involved contractor agreements, international sales, vessel construction, agency, joint ventures, telecoms, military and dual-use goods, insurance, public procurement, commodities, and corporate conflicts.
Regularly advises on investment treaty arbitration and represents clients in Ukrainian courts.
In Another Capacity
- ICC Court Member: scrutiny of awards, challenges, other procedural functions under the ICC Rules
- TIAC Court Member: appointments, scrutiny, other procedural functions under the TIAC Rules
- Expert on Ukrainian law in investment treaty arbitration and US litigation
Legal and Sectoral Expertise
Legal areas
Industry Sectors
Drafting Soft Law Instruments and Domestic Laws
Coordinator, UAA Working Group on Ukrainian arbitration legislation reform (2013–2025).
Publications
Author/co-author of 150+ publications in English, Russian, Ukrainian and Spanish.
Speaking Engagements
Speaker, moderator, and interviewer at 200+ international arbitration events.
Professional Memberships
Fellow, Chartered Institute of Arbitrators (FCIArb); Member, CIArb Approved Faculty List (AFL)
Member of
Panel of Arbitrators
Recognition
Selected in independent rankings and directories for work in international arbitration.
Legal500 EMEA
Leading Individual – Dispute Resolution
“As team lead, Olena Perepelynska's international arbitration practice spans multiple jurisdictions, and she demonstrates particular prowess in commercial and investment treaty arbitrations”
Chambers Global/Europe: Band 1
Dispute Resolution: International in Ukraine
“Head of international arbitration Olena Perepelynska is a market-leading international arbitration practitioner. She is also well regarded for her experience in cross-border litigation”
Chambers Global/Europe: Band 1
Dispute Resolution: International in Ukraine
“Olena Perepelynska deeply understands all details of procedural issues and is able to describe the full matter and realistic probability of our result”
Chambers Global/Europe: Band 1
Dispute Resolution: International in Ukraine
“Olena Perepelynska is a person of strong integrity, a disciplined arbitrator and an experienced arbitration practitioner who is well-versed in the latest developments in the field”
GAR 45 under 45
Global Arbitration Review
Olena Perepelynska became the first lawyer in the CEE and FSU regions to have received recognition of that kind.
Lexology Index
Thought Leaders – Arbitration
Lexology Index
Arbitration
Lexology Index
Thought Leaders – Transport: Aviation Contentious
Legal500
Arbitration Powerlist: CEE
Considering a neutral arbitrator?
Review my experience and case library, or contact me directly regarding potential appointments.