LAWYER PROFILE
Georgios Petrochilos KC

Georgios Petrochilos KC

Global 2026

Chambers ranking badge
Share profile
Chambers ranking badge
Three Crowns LLP
 Three Crowns LLP

Ranked in 4 practice areas

International Arbitration

France

7 years ranked

Arbitration (International)

Global Market Leaders

6 years ranked

Arbitration (International)

Europe-wide

12 years ranked

Public International Law

Global Market Leaders

6 years ranked

Public International Law

France

1 year ranked

International Arbitration

France

7 years ranked

Dispute Resolution

Greece

13 years ranked

About

Provided by Three Crowns LLP

Practice Areas

Georgios, one of the founding partners of Three Crowns, based in the Paris office, has a broad practice spanning more than two decades and covering inter-State, investment, and commercial disputes. He has represented States, international organisations, and private parties in more than 70 disputes, including several appearances in the International Court of Justice.

In addition to counsel work, Georgios is regularly sought out to act as co-arbitrator or presiding arbitrator and has experience administering cases heard under ICC, SCC, ICSID, UNCITRAL, and LCIA rules.

Professional Memberships

Georgios has represented a Member State at UNCITRAL since 2007, is a visiting professor at the Universities of Bern and Fribourg in Switzerland, and is the current rapporteur of the International Law Association International Arbitration Committee.

Publications

Georgios has published extensively on international law and international arbitration, including the well-known monograph Procedural Law in International Arbitration, the leading commentary, UNCITRAL Rules, and Social License and Dispute Resolution in the Extractive Industries.

Chambers Review

Provided by Chambers

Chambers Global Guide

International Arbitration - France

Band 1
Individual Editorial

Georgios Petrochilos KC is held in high regard for his expertise in both commercial and investment arbitrations. He acts for an impressive roster of multinationals, sovereign states and state-owned companies. Petrochilos frequently advises on mandates with Greek elements.

Learn more about this teamView ranking table

Arbitration (International) - Global Market Leaders

Band 2
Individual Editorial

Georgios Petrochilos KC is qualified to practice Greek, UK and French law and is regarded a strong practitioner in the field given his depth of experience in international arbitration. He frequently in commercial, investor-state and state-versus-state disputes, as well as being exceptionally qualified acting as counsel in ICC, SCC, ICSID, UNCITRAL and LCIA matters.

Learn more about this teamView ranking table

Arbitration (International) - Europe-wide

Band 2
Individual Editorial

Paris-based Georgios Petrochilos KC is held in high esteem for his capabilities in European-wide gas price disputes as well as PCA-administered UNCITRAL arbitrations, wherein he acts for prominent energy and construction companies.

Learn more about this teamView ranking table

Public International Law - Global Market Leaders

Band 3
Individual Editorial

Georgios Petrochilos KC is qualified to practice Greek, UK and French law and is regarded a strong practitioner in the field given his depth of experience in international arbitration. He frequently in commercial, investor-state and state-versus-state disputes, as well as being exceptionally qualified acting as counsel in ICC, SCC, ICSID, UNCITRAL and LCIA matters.

Learn more about this teamView ranking table

Dispute Resolution - Greece

Greece, expertise based abroad in France
Individual Editorial
Qualified to practise in Greece, France and the UK, Georgios Petrochilos KC of Three Crowns is recognised for his knowledge of the Greek market and legislation. Based in Paris, he maintains a prominent dispute resolution practice. He is well placed to advise on arbitration processes that have a Greek law angle.
View expertise based abroad table

International Arbitration - France

Foreign expert in Greece
Individual Editorial

Georgios Petrochilos KC is held in high regard for his expertise in both commercial and investment arbitrations. He acts for an impressive roster of multinationals, sovereign states and state-owned companies. Petrochilos frequently advises on mandates with Greek elements.

View foreign expertise table

Public International Law - France

Spotlight
Individual Editorial

Georgios Petrochilos KC of Three Crowns is a favourite among clients for his expert handling of commercial, investor-state and state-to-state arbitrations. He has notable experience in major tribunals including ICC, SCC and ICSID.

Editorial individuel

Georgios Petrochilos KC de Three Crowns est un favori parmi les clients pour sa gestion experte des arbitrages commerciaux, investisseur-État et État à État. Il possède une expérience notable devant les principaux tribunaux, y compris la CCI, la SCC et le CIRDI.

View ranking table

Strengths

Provided by Chambers

  • Georgios Petrochilos has impressive ability to present complex positions in a concise and effective manner.

    International ArbitrationChambers Global Guide

  • Georgios Petrochilos is a highly trustworthy, intelligent and strategic lawyer.

    International ArbitrationChambers Global Guide

  • Georgios Petrochilos is the doyen of gas price reviews and an all-around stellar advocate.

    International ArbitrationChambers Global Guide

  • Georgios Petrochilos is really hands on. He knows the facts, he's aware of the issues and is very much engaged.

    International ArbitrationChambers Global Guide

  • Georgios Petrochilos is the doyen of gas price reviews and an all-around stellar advocate.

    Arbitration (International)Chambers Global Guide

  • Georgios Petrochilos has impressive ability to present complex positions in a concise and effective manner.

    Arbitration (International)Chambers Global Guide

Ranked Individuals at Three Crowns LLP (37)

Africa-wide

Europe-wide

France

Global Market Leaders

Greece

Latin America - International Counsel

Singapore

Spain

What success is built on

Chambers is the leading data and intelligence partner for the legal sector.

Explore thought leadership