Harison Mitchell Clark is a Boston-based rare disease advocate, civic organizer, and external affairs professional. He is co-director of the Repair America Collective and a commissioner on the Boston People's Reparations Commission, where he works at the intersection of reparative justice, health equity, and community power. A longtime advocate for the rare disease community with over a decade of experience spanning direct patient care, federal legislative engagement, and clinical trial advisory work, Harison brings a health equity lens to everything he touches. He holds a B.S. in Biology from the University of Massachusetts Boston.