This independent evaluation provides an assessment of the Bank’s work in the water (including wastewater) sector over the six-year period (2017 to 2023). The evaluation focuses on four focal areas: a) Water supply (WS); b) Sanitation1 (SAN); c) Education and training in water supply and sanitation (ET); and d) Agricultural Water Resources (AG).2 It reviews operational management processes, coordination within the Bank, and the beneficiaries' perspectives to identify challenges, best practices, and the value of projects. The evaluation's findings aim to offer insights to inform the Bank's management and Board of Directors about future interventions and the renewal of the Water Sector Policy and Strategy. These findings are also relevant to external stakeholders, including national governments, water sector agencies, and community-based organisations.