This systematic literature review synthesizes existing empirical and bibliometric evidence on the impact of Islamic social finance (ISF) and Islamic banking on economic growth. The study addresses five key research questions concerning publication trends, dominant research methods, empirical evidence, mechanisms of impact, and future research directions. Through analysis of 60 studies spanning 2015-2025, the review reveals several key findings: Islamic banking demonstrates positive growth effects primarily through financial inclusion and investment channels, while ISF instruments (zakat, waqf, and Islamic microfinance) contribute to long-term development through poverty reduction and human capital formation. The literature shows strong geographical concentration in Southeast Asia, particularly Malaysia and Indonesia, with methodological predominance of econometric analyses and case studies. Significant research gaps include the need for integrated models combining Islamic banking and ISF, expanded geographical coverage, empirical testing of mediating mechanisms, application of advanced causal inference methods, and investigation of digital and sustainable finance innovations. The review concludes by proposing a structured research agenda to address these gaps and advance understanding of how Islamic finance contributes to inclusive economic grow