There are 1.8 billion adolescents and youth around the world today the largest in history. Yet the adolescents and youth that represent the world’s future especially girls and women in all their diversity continue to face major global challenges, and the ecosystem of stakeholders supporting them remains fragmented. “Girls Deliver: Pre-Conference on Adolescent Girls,” led by the Population Council GIRL Center and co-hosted by AFIDEP, AMPLIFY Girls, Baobab Research Programme Consortium, Children’s Investment Fund Foundation, Coalition for Adolescent Girls, Exemplars in Global Health, FP2030, Girl Effect, Girls First Fund, Conrad N. Hilton Foundation, National Democratic Institute (NDI), Plan International, PMNCH, Purposeful, Together for Girls, UNICEF, Women Deliver, and The World Bank Africa Gender Innovation Lab, will convene the community of global stakeholders representing a variety of perspectives on supporting adolescent lives in the lead up to the Women D