INTRODUCTION:
public health challenges are increasingly complex and global, requiring more than just scientific evidence to drive change. effective solutions depend on the translation of research into impactful policy through strategic advocacy and diplomacy. this abstract explores the critical functions of public health advocacy in mobilizing resources and political will, and health diplomacy in navigating international relations to secure health goals.

METHODS:
this review synthesizes literature and case studies on public health policy processes. it examines advocacy strategies, including coalition-building, strategic communication, and engaging with policymakers and media. the role of health diplomacy is analyzed through examples such as the framework convention on tobacco control and pandemic treaty negotiations, highlighting how health objectives are advanced within political and foreign policy agendas.

RESULTS:
successful public health policy is consistently linked to coordinated advocacy efforts that frame health issues in terms of economic, social, and security benefits. evidence shows that advocates who build diverse coalitions and use compelling, data-driven narratives are more effective at placing issues on the policy agenda. health diplomacy has proven essential for global health security, facilitating international agreements, resource sharing, and collective action on cross-border threats. however, progress is often hindered by political instability, commercial interests, and fragmented health systems.

CONCLUSIONS:
public health advancement is intrinsically tied to effective advocacy and diplomacy. to achieve sustainable health outcomes, professionals must skillfully operate at the intersection of science, politics, and communication. building capacity in policy analysis, strategic messaging, and diplomatic engagement is therefore not an ancillary skill but a core competency for modern public health leaders aiming to transform evidence into equitable and resilient health systems. Keywords: health policy, advocacy, health diplomacy, global health, governance, political will