This report outlines the background and initial development stage of The Wellbeing Program Guide (wellbeingguide.acer.org), a comprehensive national resource aimed at supporting schools in selecting and implementing wellbeing programs that meet diverse contexts and student needs. Wellbeing is considered in its broadest sense, to include evidence-based mental health, alcohol and other drug, and suicide prevention programs, along with social and emotional learning. Developed collaboratively by the Australian Council for Educational Research (ACER) and Department of Health Tasmania, with advice from education and industry stakeholders, the Guide prioritised the needs of school communities in Tasmania, but also includes programs serving other communities. It seeks to improve accessibility, transparency, and quality of wellbeing interventions across sectors, including Government, Catholic, and Independent schools. [Funding for this report was provided by the Department of Health, Tasmania.]