Antonis Patrikios

Antonis is a partner based in our London office. He co-chairs Dentons’ Global Privacy and Cybersecurity Group and also leads the Global TMT sector group. A UK and EU data privacy and cybersecurity law specialist, Antonis advises a wide range of UK, EU, US and Asian clients across various sectors, including technology, adtech, healthtech, fintech, media, telecoms, and fast-moving consumer goods.

Antonis advises on all aspects of EU data privacy and cybersecurity law. Most of his work has an international element, and he regularly leads on multi-jurisdictional projects. He has spent time working in Silicon Valley, which helped him develop a deep understanding of transatlantic data privacy and cybersecurity issues. His specialisms include complex cross-jurisdictional matters; global compliance programs; new legal regime (including GDPR and e-privacy regulation) readiness; artificial intelligence; new projects compliance; privacy impact assessments; risk assessments; data protection audits; commercial deal support; corporate deal support; international data transfers; data sharing and monetization activities; big data; digital marketing and online advertising; cybersecurity compliance, incident response preparedness, incident management and breach notification; data subject requests, complaints and claims; regulatory liaison; and cooperation with law enforcement authorities.

Antonis particularly enjoys providing strategic advice and helping clients engineer business solutions to legal problems, optimize risk and unlock the value of their data. He has an extensive track record of helping clients steer through crises, such as data and cybersecurity breaches and regulatory investigations.

Antonis is recognised as a leading lawyer in the 2025 editions of Legal 500 for data protection, privacy & cybersecurity and artificial intelligence and Chambers in data protection & information law. According to Legal 500, clients describe Antonis as their "go to expert as I know I can rely on him. He is up to date, pragmatic and solution driven.". Clients also commented that "We selected Dentons as our legal partner based on Antonis Patrikios’ specialism in leading multi-jurisdictional projects in the UK, EU, US and Asian across multiple sectors, including technology, e-commerce, media and AdTech. Antonis’ remarkable approach in supporting clients during crises makes him the most valuable external legal partner I have ever worked with.".