In this document, PAI announces a civil society Global Financing Facility (GFF) resource and engagement hub (The Hub), a multiyear initiative to amplify and support civil society advocacy organizations and coalitions to contribute to GFF country-level investment outcomes. In doing so, it is explained what purpose The Hub serves, which includes being a virtual forum for public information on the GFF, supporting the development of resources and tools, and providing capacity building, engagement support grants, and technical assistance.