Shannon Dosemagen (she/her) is an environmental health advocate with over two decades of experience at the intersection of open technology, science, and justice. She works to create systems that support community-led approaches to environmental and public health, particularly in fenceline and frontline communities. Shannon is the founder of Open Environmental Data Project, where she currently serves as Senior Fellow, and previously served as Executive Director from 2020 to 2024. She also co-founded Public Lab and the Gathering for Open Science Hardware.

Shannon serves on numerous boards, including the National Parks Conservation Association, Code for Science and Society, Experiment Foundation, and the Open Science Hardware Foundation. She previously chaired the (U.S.) National Advisory Council on Environmental Policy and Technology and the Association for the Advancement of Participatory Science. Recognized for her leadership, she is an Ashoka Fellow and has held fellowships with the Harvard Berkman Klein Center, Shuttleworth Foundation, Claneil Foundation, and Rita Allen Foundation, among others.