The management of marine megafauna in NSW has evolved over the past century. From sporadic records from early to mid-1900s when many species were in decline due to whaling/hunting, there has been a shift toward increased reporting, reflecting both population recoveries and the emergence of new threats. Historically, responses to marine wildlife incidents were largely reactive, with responders often managing events for the first time and adapting in real time. Over time, however, new partnerships between government agencies, non-government organisations, Traditional Owners, and academic institutions have strengthened best-practice response strategies, improving data collection, and the capacity to manage incidents such as entanglements, entrapments, and strandings. Collaborative networks have also expanded the scientific value of individual events, generating a wealth of information with samples distributed across research partners for diverse analyses. These investigations provide critical insights into population health and help to track current and emerging threats, demonstrating the far-reaching value of coordinated efforts. This presentation will trace how marine fauna management in NSW has evolved, highlighting key milestones in collaboration, capability, and scientific and cultural integration. It will provide insight into current protocols and partnerships and outline future pathways to conservation; one that is data-driven, inclusive, and grounded in strong partnerships.