David C. Harrington (July 31, 1954 – September 20, 2022) was an American politician from Maryland, a member of the Democratic Party and a former member of the Maryland State Senate. From 2008 to 2022, he served as president and CEO of the Prince George's Chamber of Commerce in addition to serving as a Senior Policy Advisor for Common Health Action. Harrington was a board member of the Eugene and Agnes E. Meyer Foundation, Consumer Health Foundation, Bowie State Board of Visitors and co-lead of the Robert Wood Johnson Place Matters special committee.