This chapter explores the principles and practices of social banking, aiming to generate both financial and social returns by prioritizing ethical and sustainable practices and addressing financial opportunities and social inclusion. Social banks provide financial services that address environmental and social issues, such as renewable energy, affordable housing, and social enterprises. In contrast to conventional banks, social banks focus on creating a positive societal impact as a core business objective. Based on the members of the Global Alliance for Banking on Values, the chapter highlights the role of social banks in promoting financial inclusion, particularly for underserved communities, through products like microfinance and loans to small and medium-sized enterprises. Social banks also actively engage in impact investing and value-based banking, aligning financial opportunities with sustainability and social development goals. The chapter concludes that social banking is a transformative approach emphasizing ethical responsibility, sustainability, financial opportunities, and social inclusion.