In 2018, Save the Children, together with local NGO partners and municipal government leaders, launched the Healthy Transitions for Nepali Youth Project (‘Healthy Transitions’) in four districts of Karnali Pradesh Province (Jarjakot, Surkhet, Dailekh and Kalikot), in the hill region of Nepal. Healthy Transitions aimed to improve reproductive, maternal and newborn health (RMNH) knowledge and practices among married and unmarried adolescent girls and young women (aged 15-24), as well as foster more equitable gender attitudes and norms. Healthy Transitions engaged 15,463 adolescent girls and young women, in addition to their husbands (when applicable), parents, in-laws and the community in interventions from 2019-2021. Adolescent girls and young women participated in fortnightly small group learning and dialogue sessions over a 12-month period using a curriculum facilitated by trained female mentors. Husbands and families were engaged in home visits using videos to stimulate discussion on key RMNH topics, gender attitudes and behaviors. Communities were engaged through regular community dialogues and other game-based activities. Healthy Transitions also supported quality improvement of RMNH services at 40 health facilities to ensure that these services were responsive to the needs of adolescent girls and young women.