The Advocating for Change for Adolescents! Toolkit was created with the hope of inspiring support and encouragement for more youth-led, high-impact solutions for adolescent health and well-being in order to benefit, not only today’s adolescents, but also future generations. The toolkit is a joint effort between The Partnership for Maternal, Newborn & Child Health (The Partnership) and Women Deliver, with the support of several partners and contributors. Its purpose is to guide the design, implementation, and monitoring of an effective national advocacy action roadmap to bring about positive policy-specific changes to improve the health and well-being of adolescents. It was developed by young people, for young people, to be used by networks of youth-led and youth-serving organizations to change the world.