About
Stéphanie Lapeyre-Castellane is a partner at OYAT, having joined the firm in 2026; she heads the Personal Data and Cybersecurity practice and co-heads the AI practice. A member of the Paris Bar since 2015, she advises and litigates on new technology matters for major French and international clients.
Practice areas
Data Protection & PrivacyCybersecurityArtificial IntelligenceTechnology & SoftwareIntellectual PropertyLitigationRegulatory Compliance
Office
Expertise
Luxury GoodsRetailMediaEnergyTransportHealthcareFinanceTechnologyPublic Sector / Major Public Organizations
Education
- Sciences Po — Diploma in International Affairs
- Panthéon-Sorbonne (Paris I) University — Master 1 in Business Law
- Panthéon-Sorbonne (Paris I) University (with Paris-Saclay University) — Master 2 in Digital Creation Law
Admissions
- Paris Bar (admitted 2015)
Languages
EnglishFrench