Olga Siokou-Siova currently serves as Chief of Communication, Advocacy and Government Partnership Liaison with the United Nations Children’s Fund in Greece, with over 15 years of experience across the United Nations system and international organizations, spanning Europe, Southeast Asia, Latin America, and the United States. She has held multiple roles at United Nations Headquarters in New York within the United Nations Department of Economic and Social Affairs, working in close proximity to the United Nations Secretary-General’s Office, supporting high-level communication, advocacy, and awareness-raising initiatives linked to major international agendas. Her work focuses on translating global policy frameworks into actionable strategies that drive institutional and societal impact. Her experience spans diverse geopolitical contexts, including work in Sri Lanka and Cuba with organizations such as Search for Common Ground, focusing on social cohesion, mediation, and peacebuilding in post-conflict environments. Olga operates at the intersection of external relations, public policy, and strategic communication, managing multidisciplinary, multi-stakeholder teams while engaging governments at ministerial and senior executive level. She works from the premise that communication, when grounded in behavioral insight and aligned with policy, can act as a catalyst for systemic change. She holds an MSc in Global Affairs from New York University, an MA in International Strategic Studies and Diplomacy from the University of Macedonia, and a BA in Journalism and Mass Communication from the Aristotle University of Thessaloniki. She has also developed and produced award winning documentary projects on social issues, including human trafficking and refugee integration, bringing a storytelling dimension to her work on policy, behavioral science, and societal change.
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