David Smith Bennett (May 3, 1811 – November 6, 1894) was an American politician and a U.S. Representative from New York.

Born on a farm near Camillus, New York, Bennett was the son of James B. and Sarah Olmstead Bennett and attended the common schools and the local academy in Onondaga.

In 1853, Bennett moved to Buffalo, where he built and operated several grain elevators.

[1] After declining to run for renomination in 1870, Bennett resumed his former business pursuits in Buffalo, New York.

Bennett died in Buffalo, Erie County, New York, on November 6, 1894 (age 83 years, 187 days).