Advocacy is a fundamental responsibility of physician anesthesiologists, extending beyond the operating room to the legislative, regulatory, and public arenas where healthcare policy is shaped. This chapter explores the diverse ways anesthesiologists advance patient safety, uphold the integrity of the Anesthesia Care Team (ACT), and defend evidence-based standards of care through organized advocacy. It examines critical issues—including truth in advertising, scope-of-practice legislation, non-compete restrictions, and fair reimbursement—that directly affect patient outcomes and professional autonomy. Drawing from examples at the national, state, and local levels, this chapter highlights how anesthesiologists can engage with policymakers, medical societies, and grassroots movements to influence sustainable, patient-centered healthcare reform. It also underscores the importance of collaboration between physicians, residents, medical students, and patients to create a unified voice for quality and safety. By developing advocacy skills and engaging with professional organizations such as the ASA, anesthesiologists can transform their clinical insight into effective public policy leadership. Ultimately, advocacy is not optional—it is an ethical imperative that ensures the continued delivery of safe, equitable, and physician-led anesthesia care.