One out of every 100 Youth19 participants identified as transgender or non-binary (1.0%). A further 0.6% reported that they were not sure of their gender. Three quarters (73%) of transgender and diverse gender participants said they had started to identify as transgender or gender-diverse before the age of 14. Transgender students face high challenges in home, school, community and health care settings. Despite this, many are doing well, and transgender young people contribute widely in communities. We all share the responsibility to create environments in which transgender young people can flourish. There are important actions that families, schools, communities and government can take to support the health and wellbeing of transgender young people – more inside.