The number of older adults living with functional decline and serious illness is growing exponentially at a time when availability of both family and professional caregivers is strained. Achieving optimal outcomes for this vulnerable population involves advancing the knowledge needed to improve the quality of care delivered by families, health professionals, and community programs. Recent reports from National Institute of Health and the National Academy of Science, Engineering and Medicine have called for the identification of gaps in key areas of family caregiving intervention research. In March 2018, the Family Caregiving Institute at UC Davis convened an invitational meeting of over 50 thought leaders in family caregiving-representing service agencies, funding organizations, and academia-to participate in the Research Priorities in Caregiving Summit: Advancing Family-Centered Care across the Trajectory of Serious Illness. Using an iterative process, attendees identified the top 10 research priorities and created research priority statements that incorporated a definition of the priority topic, rationale for the priority; problem(s) to address; priority population(s); and example research topics. The research priority statements serve as a roadmap for research development that will address the most significant gaps in the caregiving field.