This report details the key findings from a research project that explored the post-primary school experiences of transgender and gender diverse (TGD) youth in Ireland. The study was co-funded by the Irish Research Council and Marie Skłowdowska-Curie Actions as part of the “Collaborative Research Fellowships for a Responsive and Innovative Europe” (CAROLINE) programme. The research was a collaboration between the School of Education, University of Limerick and Transgender Equality Network Ireland (TENI). The project was made possible by, and builds on, the advocacy, education and support work that TENI has been conducting in the education sector since 2013. The project team consisted of Dr Ruari-Santiago McBride (Research Fellow), Dr Aoife Neary (Principal Investigator and Academic Mentor), Dr Breda Gray (Consultative Academic Mentor), and Vanessa Lacey (Secondment Mentor).