Edward Tatnall (1782–1856) was a miller and railroad executive based in Wilmington, Delaware. He was a son of Joseph Tatnall, a miller and banker in Wilmington. He was a director of the Delaware and Maryland Railroad and of the Wilmington and Susquehanna Railroad, two of the four railroads that helped build the first rail link from Philadelphia to Baltimore. In 1838, they merged into the Philadelphia, Wilmington, and Baltimore Railroad. His service is noted on the 1839 Newkirk Viaduct Monument (upon which his name is misspelled as "Tatnell").