Pluralistic Leadership introduces a governance design framework for philanthropic institutions operating under conditions of complexity, uncertainty, and rapid social change. The framework expands how leadership, authority, and knowledge are structured within governance systems by integrating multiple forms of expertise—including lived experience, professional knowledge, cultural insight, and relational intelligence—into decision-making processes. By strengthening institutional intelligence, the framework aims to improve how philanthropic organizations interpret complex social conditions and steward resources for public benefit. Developed through the Future Funders Initiative, Pluralistic Leadership synthesizes insights from social work, systems thinking, democratic pluralism, and adaptive leadership to support governance innovation and institutional learning across philanthropy.