Erin Hohlfelder is a Senior Program Officer at the Bill & Melinda Gates Foundation, where she works to develop and implement the foundation's first-ever advocacy and communications strategy and grant portfolio on gender equality. Prior to joining the Foundation, Erin spent 6 years at the ONE Campaign, where she served as the Policy Director for Global Health and led health research and policy analysis across ONE’s global markets. In this work, she focused primarily on infectious diseases, maternal and child health, and health financing mechanisms; she also led ONE’s response to the West African Ebola outbreak. Before joining ONE, she worked as the Policy Associate for the Global Network for Neglected Tropical Diseases at the Sabin Vaccine Institute, where she developed grassroots and donor advocacy strategies, scaled up the organization's online media and communications work, and cultivated new partnerships. In 2007, also Erin spent time living in Kenya, where she conducted research on integrated care models for female orphans.

Erin has been media trained and featured in TV, print, radio, and online media outlets, including MSNBC, NPR, Financial Times, Reuters, America with Jorge Ramos, The Daily Beast, Deutsche Welle, Devex, and Huffington Post Live. She is a summa cum laude George Washington University graduate.