Nikoleta Chalanouli
Nikoleta Chalanouli is a Co-Founder, Senior Counsel, and Lead International Consultant at Lexpat Global Services. She is a dual-qualified lawyer admitted to the Athens and Madrid Bar Associations. She also serves as a Senior Legal Officer at EMBL Heidelberg and as a judge on NATO’s Mission Appeals Tribunal.
Ms. Chalanouli advises international organizations, national public institutions, and private-sector clients on public international law, European Union law, international institutional law, operational law, and data protection. She has provided legal advice in support of NATO-led operations, including the International Security Assistance Force (ISAF) in Afghanistan, Operation Unified Protector in Libya, and operations in the Balkans. She also has counseled European and multilateral organizations, including EUROCONTROL and UNESCO, on legal, regulatory, and institutional matters.
On NATO’s Mission Appeals Tribunal, she hears administrative appeals involving civilian personnel working in NATO-led missions. She previously served as a Deputy Member of the European Union Satellite Centre Appeals Board. Together, these appointments reflect her experience with international administrative law, institutional governance, and dispute resolution.
Ms. Chalanouli is also a professor at Universidad Católica San Antonio de Murcia. She has lectured at the International Institute of Humanitarian Law, the NATO School, the NATO Defence College, and the U.S. Army Judge Advocate General’s Legal Center and School. Her teaching, publications, and presentations have addressed the law of international organizations, international administrative tribunals, legal warfare, visiting forces, and grey-zone conflict.
Her work brings together legal practice, institutional experience, teaching, and scholarship, with a particular focus on the challenges facing international organizations and clients operating in complex multinational and operational environments.
