Community engagement represents a foundational strategy for advancing cancer research and improving health outcomes. This study examines advocacy as a form of community engagement across the cancer research continuum, aligning with ASCO's 2024-2025 presidential theme of "Driving Knowledge to Action: Building a Better Future." We present a comprehensive framework that promotes bidirectional learning, trust, and transparency at all stages of research, from conception to dissemination. The spectrum of engagement approaches is described, ranging from consultative models to fully collaborative partnerships, highlighting how each creates critical touchpoints throughout the research process. We identify significant challenges to meaningful community engagement-including institutional barriers, historical mistrust, and sustainability concerns-while offering practical solutions drawn from successful examples across diverse cancer research settings. This study concludes with actionable recommendations for advancing robust community engagement through diverse representation, mentorship programs, institutional support mechanisms, and dedicated funding channels. By integrating advocacy throughout the research continuum, we create pathways for patients, caregivers, community representatives, and emerging professionals to shape research agendas, inform study designs, and participate in translating findings into policy and practice, ultimately ensuring cancer research is inclusive, relevant, and accessible to all communities.