Predictive analytics is increasingly transforming the landscape of public policy by enabling governments to anticipate challenges, optimize resource allocation, and design data-driven interventions. Despite its benefits, adoption remains uneven across developing and developed nations. This paper examines the drivers, barriers, and frameworks for integrating predictive analytics into public policy decision-making. Using an interdisciplinary approach, the study synthesizes concepts from data science, governance theory, and behavioral public administration. The article also proposes a conceptual model for successful adoption and discusses ethical considerations such as transparency, accountability, and algorithmic fairness.