This document outlines a strategic approach to engaging civil society in the GFF, at sub-national, national, and global levels. It highlights the unique value that civil society brings to the advancement of RMNCAH, by describing CSO’s breadth of expertise and deep reach to a wide range of communities, including the poorest and most vulnerable. And, it describes the roles and responsibilities for civil society, country governments, and supporting partners, to ensure that civil society’s full value can be leveraged to support the GFF and achieve common goals. These roles and responsibilities build upon existing structures, processes, coalitions, and platforms, and aim to align with other key global initiatives and financing mechanisms such as Gavi, the Global Fund, SUN, and UHC2030.