David Sherwood Jackson (1813 – January 20, 1872) was an American businessman and politician who served 13 months as a U.S. Representative from New York from 1847 to 1848, when his election was declared invalid following an investment by the House.
Born in New York City in 1813, Jackson grew up attending public schools.
He served as an alderman in the common council of New York City from 1843 to 1846, while engaging in various business pursuits.
Jackson was elected as a Democrat to the 30th Congress however his opponent contested the election on the grounds of fraud because several "paupers" living in an almshouse voted using the almshouse as their address.
After a House investigation it was determined that neither candidate had won and the seat was made vacant.