World Bank2025-07-022025-07-022025-07-02https://hdl.handle.net/10986/43414The sustainable development of the blue economy requires financial instruments that mobilize investment, mitigate risks, and drive measurable impact. This report presents a stocktaking of blue finance mechanisms, examining their financial structures, implementation requirements, and performance across categories such as sovereign blue bonds, debt-for-nature swaps, insurance products, and impact funds. It explores enabling conditions, key challenges, and success factors while assessing the role of different actors in structuring and scaling these mechanisms. The analysis also examines how these instruments are applied across different sectors, their effectiveness in mobilizing capital, and the frameworks used to monitor and evaluate outcomes. The findings aim to inform policy makers, financial institutions, and investors, offering practical recommendations to enhance the effectiveness and reach of blue finance solutions and replicate and scale them up in supporting the blue economy development.en-USCC BY-NC 3.0 IGOBLUE FINANCEBLUE ECONOMYCLIMATE CHANGEReportWorld Bankhttps://doi.org/10.1596/43414