SILK PROFILE
Gerry Facenna KC

Gerry Facenna KC

UK Bar 2026

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Ranked in 8 practice areas

About

Provided by Monckton Chambers

Practice Areas

Competition, Commercial Regulation, Data Privacy, Energy, EU, Judicial Review and human rights.

Gerry Facenna is an expert in administrative law; regulatory law (including energy, telecoms, and transport); competition law; civil liberties; consumer rights; data protection; and EU law. His recent work includes: CAT collective proceedings against Google (ad tech / competition law); ICO v. Tiktok (regulatory data protection); O’Carroll v. Meta (data protection rights); collective proceedings against the Police Federation (data protection); R (Bridges) v S. Wales Police (police use of facial recognition); restitution clams against the water and sewerage companies; Hughes v Pension Protection Fund (pensions / discrimination); CMA v Care UK (Unfair Terms in Consumer Contracts); Lloyd v Google (data protection class actions); Elgizouli (data - international transfers); R (Heathrow Hub Ltd.) v. SoS (third runway – competition); Google v CNIL (right to be forgotten); Liberty v. SSHD (Investigatory Powers Act); Wightman (Art 50 / Brexit); Miller (1) (Art 50 / Brexit); Privacy International (investigatory powers / civil liberties).

Career

Called to the Bar of England & Wales (2001, KC 2016); Scotland (2006) and Ireland (2018). Previously a member of the Attorney-General’s ‘A’ Panel of counsel.

Publications

Contributing author to: Information Rights: Law and Practice (Hart, 2020); Halsbury’s Laws of England: Rights and Freedoms (LexisNexis, 2013); EU Competition Law: Procedures and Remedies (OUP, 2006) and The Law of State Aid in the European Union (OUP, 2004).

Chambers Review

Provided by Chambers

UK Bar

Data Protection - London (Bar)

Star Individual
Star Individuals

Individual Editorial

Gerry Facenna KC tends to a varied client base of individuals and organisations which request and hold information, and regularly acts for public authorities, including the Information Commissioner itself, offering advice on all aspects of data protection and freedom of information. He has an extensive track record of appearing in cutting-edge cases in forums including the Supreme Court and the CJEU.

European Law - London (Bar)

Band 1
Band 1

Individual Editorial

Gerry Facenna KC receives consistently strong praise for his work on significant European law mandates. He took a prominent role in the legal wrangling following the Brexit referendum, both through his co-authorship of the 'Three Knights Opinion' and his appearance in the Wightman reference. Facenna also advises on energy sector state aid, employee benefits and data protection cases that are heard before EU courts.

Telecommunications - London (Bar)

Band 2
Band 2

Individual Editorial

Gerry Facenna KC has acted in several important public law cases that test the relationship between data privacy and the obligation on telecommunications providers to store and disclose data in the interests of counterterrorism. He also handles data privacy cases regarding EU data rules for search engines. His clients include significant telecommunications and technology companies, as well as government bodies.

Administrative & Public Law - London (Bar)

Band 2
Band 2

Individual Editorial

Gerry Facenna KC has a broad depth of administrative and public law expertise, with a particular emphasis on EU law and regulatory matters. He is also adept at judicial reviews involving human rights law and is equally sought after by defendants and claimants.

Environment - London (Bar)

Band 3
Band 3

Individual Editorial

Gerry Facenna KC is recognised as an expert for cases relating to the EU regulation of, and access to, environmental information. His client base includes campaign groups, individuals, corporations, government bodies and regulators.

Civil Liberties & Human Rights - London (Bar)

Band 3
Band 3

Individual Editorial

Gerry Facenna KC is a highly commended silk noted for his abilities in public law and data protection with significant human rights and civil liberties implications. He is particularly expert in privacy rights matters.

Group Litigation - All Circuits

Band 3
Band 3

Individual Editorial

Gerry Facenna KC is recognised for his strong expertise in data and competition-related group litigation and collective actions. He has typically represented the claimant groups or representative claimants in such cases.

Energy & Natural Resources: Regulatory - London (Bar)

Spotlight
Spotlight

Individual Editorial

Gerry Facenna KC is a prominent competition and regulatory silk with a noteworthy energy specialism. He represents both regulators and private companies on price control disputes and regulatory advice.

Strengths

Provided by Chambers

  • He combines a very good understanding of technical matters with good judgement.

    Data ProtectionUK Bar
  • Gerry is peerless in matters combining information law and public law.

    Data ProtectionUK Bar
  • Gerry is a statesman of the data protection Bar. He can take complex technical details and present clear and concise advocacy on the points. He inspires confidence in clients.

    Data ProtectionUK Bar
  • He is absolutely fantastic, a brilliant advocate who knows everything about EU law. He is extremely good in court and very diligent; one of the best public and EU lawyers there is at the Bar.

    European LawUK Bar
  • Gerry is unbelievable, he's totally on top of his game. He makes it look effortless, he never once loses his thread or confidence.

    European LawUK Bar
  • Gerry is preeminent, he is the perfect choice for a leader. He is fearsomely bright, smart, fair and unbelievably effective.

    European LawUK Bar

Ranked Barristers at Monckton Chambers (167)

All Circuits

London (Bar)

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