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Carmen Núñez-Lagos


Carmen Núñez-Lagos
English, French, Italian, Spanish
Practice Group

A partner in the firm’s International Arbitration Practice Group, Carmen Núñez-Lagos has more than 25 years' experience in the field. She has acted in more than 100 international arbitration proceedings on behalf of industrial groups and states. Dual-qualified in Spain and France, she guides clients through large-scale, complex commercial and investment treaty arbitrations, with a focus on Europe, Latin America and Africa. 

Carmen regularly acts on arbitrations in relation to infrastructure projects, energy and telecommunications under the arbitration rules of the International Chamber of Commerce (ICC), the London Court of International Arbitration (LCIA) and the International Centre for Settlement of Investment Disputes (ICSID).  She is regularly appointed as president, co-arbitrator and sole arbitrator in arbitration proceedings and is listed on the roster of arbitrators for the ICC, LCIA, and Kuala Lumpur Regional Centre for Arbitration (KLRCA), among others.  Honorary president of the French chapter of the Spanish Arbitration Club, she is also a member of the board of directors of the Spanish Arbitration Club worldwide, a member of the ICC Commission and of the drafting committee for the ICC Task Force on Arbitration involving states and state entities. Since January 2017, she has been appointed as an arbitrator for the Court of Arbitration for Sport (CAS) in Lausanne. Sources praise for Carmen abounds. 

Chambers Global 2016 acclaims: "Carmen Núñez-Lagos is well respected by peers in the French market and praised by clients, who describe her as "an expert who knows her area perfectly. She is very accessible and always tries to simplify matters". Legal 500 2015 notes, “The ‘pragmatic’ Carmen Núñez-Lagos has ‘excellent knowledge and interpersonal skills.'" In 2012, Global Arbitration Review said, “She is an excellent arbitrator and an inspired advocate".

'One of the most promising Spanish-speaking arbitration practitioners around”. “She is an excellent arbitrator and an inspired advocate.'

Global Arbitration Review 2012

Representative Experience

Representing a Latin American state in ICSID and UNCITRAL arbitrations by companies in the fertilizer and food industries.

Representing a French investor in ICSID arbitration against an Eastern European State arising out of tax reforms.

Advising a Latin America state-owned company in arbitration proceedings against a U.S. infrastructure company in relation to the construction of a hydrocarbon plant.

Advising a Mexican state-related entity in relation to the freezing of its assets in a European country.

Representing a North African sovereign wealth fund in ICC arbitration proceedings in relation to several of its investments in Africa.

Representing a major state-owned company in an OHADA arbitration case relating to the nationalisation of assets in an African State.

Assisting a French multinational company in pre-arbitration proceedings against a North America company regarding a contract for the supply of equipment for an aluminium plant.

Education and admissions


  • LL.M with Honors, Exeter University School of Law, 1990
  • University of Bologna, 1989
  • University of Zaragoza, 1989


  • Appointed to the panel of arbitrators of several institutions, inter alia: ICC, LCIA, Madrid Court of Arbitration, Milan Court of Arbitration, KLRCA
  • Chartered Institute of Arbitrators (CIArb)
  • Former President of the French Chapter of the Spanish Arbitration Club
  • ICC Commission on Arbitration
  • ICC Task Force on arbitration involving States or State Entities: drafting committee
  • Member of the European user's council of the LCIA

Bar admissions and qualifications

  • Madrid
  • Paris


Ranked in LMG Rising Stars


The ‘pragmatic’ Carmen Nuñez-Lagos has ‘excellent knowledge and interpersonal skills’

Legal 500


Ranked in Best Lawyers in France 2015, International arbitration


One of the most promising Spanish-speaking arbitration practitioners around”. “She is an excellent arbitrator and an inspired advocate".

Global Arbitration Review

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