On March 28 and 29, 2022, the Board on Behavioral, Cognitive, and Sensory Sciences at the National Academies of Sciences, Engineering, and Medicine held a virtual symposium entitled Community Interventions to Prevent Veteran Suicide: The Role of Social Determinants to gain a better understanding of social determinants influencing the recent increase in suicide risk and how currently available practice guidelines can inform community-level preventive interventions, particularly those targeting veteran populations. Presenters and participants explored the relevant social, cultural, and economic factors driving changes in suicide risk among veterans and ways that current best practices for suicide prevention and treatment can be applied at the community level. This publication summarizes the presentations and discussion of the symposium.