Despite significant advances in STEM education and a growing emphasis on gender equality in research and policy circles, women across Europe remain under-represented in STEM careers and among graduates majoring in STEM related fields. This report aims to consolidate current research findings, policy analyses and best practices in relation to gender disparities in STEM education. Its key objective is to systematically identify and analyse the factors at individual, contextual and institutional levels that contribute to the gender gap in STEM education. This includes examining aspects such as societal attitudes, educational practices, curriculum design and the role of educators in shaping gender perceptions and choices in STEM. The report highlights the multifaceted nature of the gender gap in STEM education and careers. This issue calls for a comprehensive, multi-level approach that encompasses educational reforms, policy interventions, societal attitude shifts and targeted support mechanisms to bridge this gap effectively. Addressing the gender gap in STEM is not only a matter of educational equity but also an issue of critical economic and societal concern, given the increasing importance of STEM fields in navigating the modern world, driving innovation, and addressing global challenges.