Heather Dawn Sweet (born August 23, 1981) is a Canadian politician who serves as a Member of the Legislative Assembly of Alberta, representing the riding of Edmonton-Manning. She was elected in the 2015 Alberta election as a member of the New Democratic Party, and she was re-elected in 2019 and 2023. As of June 21, 2024, she serves as the Official Opposition critic for Agriculture and Forestry as well as for Rural Economic Development. She also serves as the Deputy Whip of the Official Opposition.
Before entering politics, Sweet worked as a registered social worker for more than 10 years, with one year working with the Métis Child and Family Services Society. Sweet worked in child protection services focusing on high-risk youth from 2005 to 2015.