David Jennings (1787–1834) was a 19th-century American lawyer and politician who was a United States Representative from Ohio for part of one term from 1825 to 1826.
He studied law, was admitted to the bar in 1813, and commenced practice in St. Clairsville. Jennings held several local offices, and served as prosecuting attorney of Belmont County from 1815 to 1825.
Political career
He served as member of the State senate from 1819 to 1824.