Health services collaboration is an academic concept and research field examining the processes, mechanisms, and outcomes of diverse stakeholders, including health services, communities, and residents, engaging in joint action to address health needs and improve well-being. This concept investigates how coordinated efforts, shared decision-making, and the leveraging of varied resources across sectors and levels enable more effective, equitable, and sustainable approaches to health promotion, disease prevention, treatment, and care, underscoring a whole-of-society perspective on health.