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.
Born in Readington Township, New Jersey, Jennings attended the public schools.
Jennings held several local offices, and served as prosecuting attorney of Belmont County from 1815 to 1825.
Jennings was elected as a pro-Adams Republican to the Nineteenth Congress and served from March 4, 1825, until his resignation on May 25, 1826.
This article incorporates public domain material from the Biographical Directory of the United States Congress