Since 2013, the Robert Wood Johnson Foundation (RWJF) has embarked on a pioneering effort to advance a Culture of Health. The Culture of Health action framework is founded on a vision in which "everyone in our diverse society leads healthier lives now and for generations to come." To put the Culture of Health vision into action, RWJF asked RAND Health to support the development of an action framework and measurement strategy. This report summarizes the stakeholder engagement efforts that RAND used to inform this work. It draws on a series of interviews and focus groups that RAND researchers conducted with stakeholders both within and outside the United States. It should be of interest to RWJF, as well as to those individuals and organizations interested in advancing the Culture of Health action framework. Given that RWJF is focused on using the Culture of Health action framework and measures to catalyze national dialogue about content and investments to improve population health and well-being, the report should be beneficial to a range of national, state, and local leaders across a variety of sectors that contribute to health as described by the Culture of Health action framework.