Vasilis Gregoriou (born 1965, Trikala, Greece) is a researcher, inventor, technology entrepreneur and former  Director and Chairman of the Board of Directors at National Hellenic Research Foundation (NHRF) in Athens, Greece. During his career, he has achieved international recognition by serving in research and administrative positions both in Greece and the US. His studies in Greece began at the University of Patras (BSc. Chemistry) while his studies in the United States took place at Duke University where he received a PhD degree in Physical Chemistry. He was also a National Research Service Award recipient at Princeton University.