In November 2022, the Global Network of Young People Living with HIV (Y+ Global) convened an online dialogue to explore how criminalising HIV non-disclosure, potential or perceived exposure, or unintentional transmission affects young people living with HIV, young sex workers, young people who use drugs, and young LGBTIQ+ persons. The participants were all from networks representing these groups of young people from Africa, Asia, Europe and Latin America and globally. Youth-led HIV and key population networks can strengthen and contribute to the HIV decriminalisation movement by building on existing work, working together, and advocating at different levels.