Affordable housing policies play a pivotal role in shaping the economic and social landscapes of nations, especially in the context of growing urbanization and income inequality. This comparative review examines the economic and social impacts of various affordable housing policies across different countries, providing a comprehensive analysis of their effectiveness and broader implications. Economic impacts of affordable housing policies are multifaceted, influencing job creation, economic growth, and household stability. By increasing the supply of affordable housing, these policies can stimulate construction and related industries, leading to significant job creation and economic activity. Affordable housing also enhances household stability by reducing housing costs, allowing for greater disposable income and increased consumer spending. This review explores how policies such as tax incentives, subsidies, and inclusionary zoning have been utilized to promote affordable housing development and their resultant economic benefits. Social impacts of affordable housing policies are equally significant, affecting community cohesion, health outcomes, and educational attainment. Stable and affordable housing contributes to improved mental and physical health by reducing stress and exposure to poor living conditions. Furthermore, it enhances educational outcomes for children by providing a stable home environment conducive to learning. This review discusses policies such as rent control, public housing initiatives, and housing vouchers, highlighting their role in fostering social inclusion and reducing disparities. Case studies from diverse regions, including the United States, Singapore, and Brazil, illustrate the varied approaches and outcomes of affordable housing policies. In the United States, the Low-Income Housing Tax Credit (LIHTC) program has been instrumental in increasing affordable housing supply and promoting economic development in underserved areas. Singapore's Housing and Development Board (HDB) has successfully provided high-quality, affordable housing to a majority of its population, significantly enhancing social stability. Brazil's Minha Casa Minha Vida program showcases how large-scale public housing initiatives can address housing deficits and improve living standards for low-income families. The review concludes that while affordable housing policies have distinct economic and social impacts, their success largely depends on contextual factors such as policy design, implementation strategies, and local economic conditions. Policymakers must consider these factors to create effective and sustainable housing solutions that promote both economic prosperity and social well-being. Keywords: Economic, Social: Impact, Affordable Housing, Policies.