PATH conducted a study on behalf of the HPV Vaccine Acceleration Program Partners Initiative (HAPPI) Consortium on reaching out-of-school (OOS) girls with human papillomavirus (HPV) vaccination in low- and middle-income countries (LMICs). OOS girls are frequently missed by HPV vaccination campaigns where vaccine delivery is often centered around schools. PATH conducted interviews with 77 stakeholders in Bangladesh, Burkina Faso, Ethiopia, The Gambia, Mali, Senegal, and Solomon Islands to identify innovative strategies, challenges, and opportunities to vaccinate OOS girls against HPV. This slide deck provides a comprehensive overview of the study, including methods, key results and learnings, and recommendations for LMICs.