Ranked in 1 Practice Areas
3

Band 3

Dispute Resolution: Domestic

Ukraine

3 Years Ranked

Ranked in Guides

About

Provided by Oleksiy Koltok

Europe

Practice Areas

Oleksiy Koltok is an attorney-at-law, partner in Sayenko Kharenko’s Litigation Dispute Resolution practice with over 20 years of legal experience. Oleksiy specialises in comprehensive defence of clients’ interests in complex litigation across all sectors of the economy.

Oleksiy has considerable experience in representing national and international clients in Ukrainian courts of all instances and specialisations, defending them in corporate disputes, disputes with state and regulatory authorities, commercial disputes, consumer protection disputes, real estate and construction disputes, labour disputes, debt collection disputes, enforcement proceedings and bankruptcy, etc. Mr. Koltok also has extensive experience of representing national and international clients in Ukrainian courts of all instances and specialisations.

Oleksiy also has extensive experience in pre-trial and out-of-court dispute resolution, including advising clients on developing litigation defence strategies, countering raiding, property protection, concluding amicable settlement agreements, appeals to the European Court of Human Rights, as well as assistance in negotiations, etc.

Professional Memberships

Ukrainian Bar Association

American Chamber of Commerce in Ukraine

European Business Association

Languages Spoken

English, Ukrainian

Education

Specialist’s degree in law from National Academy of Internal Affairs of Ukraine

Specialist’s degree in finance from Taras Shevchenko National University of Kyiv

Awards

Recommended in Dispute Resolution in Ukraine by Chambers Global 2026 and Chambers Europe 2025

Recognised among the leading partners in Dispute Resolution in Ukraine by The legal 500, 2025

Recognised among the leading lawyers in Dispute Resolution by Benchmark Litigation 2025

Recognised among the leading practitioners for Litigation by Ukrainian Law Firms 2025

Recognised among the leading lawyers in Litigation by Best Lawyers in Ukraine 2022

Work Highlights

Secured the successful recovery of the Gulliver multifunctional complex in favour of state-owned banks

Defended Reckitt Ukraine During Regulatory Inspection of Aerosol Product Labelling

Defended the interests of an international organisation in the labour dispute on compensation of UAH 2.5 million

Defended the client’s interests in a land dispute

Defended the client’s interests in enforcing the decision to suspend the operation of petrol station

Chambers Review

Provided by Chambers

Chambers European Guide

Dispute Resolution: Domestic - Ukraine

3
Band 3
Individual Editorial
Oleksiy Koltok regularly represents both domestic and international clients in proceedings in local courts.

Strengths

Provided by Chambers

Articles, highlights and press releases

2 items provided by Sayenko Kharenko

Discover other Lawyers at
Sayenko Kharenko

Provided by Chambers
Filter by
Band

Ukraine

Banking & Finance

E
Nazar Chernyavsky
Head of Banking & Finance
E
Eminent Practitioners
1
Anton Korobeynikov
Head of Banking & Finance
1
Band 1
3
Igor Lozenko
Head of Banking & Finance
3
Band 3
Oles Trachuk
Associates to watch
Vladyslava Mitsai
Associates to watch
Competition/Antitrust

E
Volodymyr Sayenko
Head of Competition/Antitrust
E
Eminent Practitioners
2
Maksym Nazarenko
Head of Competition/Antitrust
2
Band 2
2
Valentyna Hvozd
Head of Competition/Antitrust
2
Band 2
Corporate/M&A

E
Volodymyr Sayenko
Head of Corporate/M&A
E
Eminent Practitioners
1
Oleksandr Nikolaichyk
Head of Corporate/M&A
1
Band 1
U
Dmytro Riabikin
U
Up and Coming
Dispute Resolution: Domestic

3
Oleksiy Koltok
3
Band 3
Dispute Resolution: International

2
Olexander Droug
2
Band 2
4
Olga Vorozhbyt
4
Band 4
Employment

2
Svitlana Kheda
Head of Employment
2
Band 2
Intellectual Property

3
Oleg Klymchuk
Head of Intellectual Property
3
Band 3
Restructuring/Insolvency

Anton Korobeynikov
Spotlight
Igor Lozenko
Spotlight
Tax

Vitaliy Odzhykovskyy
Spotlight
White-Collar Crime

Sergiy Smirnov
Spotlight

Key Sectors

Provided by Sayenko Kharenko

Financial Services

Retail and Consumer