This handbook provides an engaging and comprehensive analysis of social finance, a developing and important topic. In five sections, it presents social finance through a broad lens, encompassing both theoretical and practical content. Section I provides background material on social finance. Section II examines the various tools and mechanisms of social finance, providing numerous examples of its implementation. Section III examines social finance in various countries and economies, presenting specific examples of social finance, including both successes and failures. Section IV explores several ongoing issues and debates related to social finance. Section V identifies major obstacles and opportunities facing social finance and contemplates its future. Of interest to researchers, students, practitioners, and policymakers, this handbook fills a gap by demonstrating how social finance is a growing and dynamic force in finance worldwide.