LAWYER PROFILE
Kieron O'Callaghan

Kieron O'Callaghan

Global 2026

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Ranked in 1 practice area

About

Provided by Hogan Lovells Cadwalader

Practice Areas

Kieron O'Callaghan has over 20 years of experience handling a broad range of complex, high-value international commercial disputes under all of the major arbitral rules. As the lead of the London arbitration team and Deputy Global Head of the International Arbitration practice, Kieron is sought out by clients to handle their complex, bet-the-company arbitrations.

Kieron's multijurisdictional practice focuses on various industry sectors, including energy and natural resources, international trade, life sciences, telecoms, and transportation. Legal 500 commends Kieron as a "first-class practitioner without the ego that usually accompanies such ability." At the forefront of legal issues, Kieron has contributed to numerous publications and spoken regularly at arbitration and energy industry events. He was recently appointed to the ICC UK National Committee in 2020 and is an active member of the International Bar Association (IBA) and the Association of International Petroleum Negotiators (AIPN).

Chambers Review

Provided by Chambers

Chambers Global Guide

International Arbitration - UK

Band 5
Band 5

Individual Editorial
Kieron O'Callaghan leads the international arbitration team in London. He leverages significant CIS expertise within his arbitration practice, and often represents clients in the banking, energy and pharmaceutical sectors in high-value LCIA arbitrations.

Strengths

Provided by Chambers

  • Kieron has a good command of detail and a soft hand with clients.

    International ArbitrationChambers Global Guide
  • Kieron brings detailed knowledge of underlying commercial areas and has great expertise.

    International ArbitrationChambers Global Guide
  • Kieron thinks through issues and is well organised.

    International ArbitrationChambers Global Guide

Ranked Individuals at Hogan Lovells Cadwalader (307)

Africa-wide

Asia-Pacific Region

Belgium

Brazil

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    Isabel Costa Carvalho

    Corporate Crime & Investigations (International Firms)

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  • Profile image of Isabel Costa Carvalho
    Isabel Costa Carvalho

    Corporate/M&A (International Firms)

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China

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    Owen Chan

    Banking & Finance: Hong Kong-based (International Firms)

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  • Profile image of Shantay Cong
    Shantay Cong

    Banking & Finance: Mainland China-based (International Firms)

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  • Profile image of Nelson Tang
    Nelson Tang

    Capital Markets: Equity (International Firms)

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  • Profile image of Calvin Ding
    Calvin Ding

    Corporate Investigations/Anti-Corruption (International Firms)

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  • Profile image of David S Wang
    David S Wang

    Corporate/M&A: Mainland China-based (International Firms)

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  • Profile image of James Kwan
    James Kwan

    Dispute Resolution: Arbitration (International Firms)

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  • Profile image of Zoe Dong
    Zoe Dong

    Dispute Resolution: Arbitration (International Firms)

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