David P. Forrest was an American politician from New York.
He was Clerk of Schenectady County from 1850 to 1852.
He was an Inspector of State Prisons from 1860 to 1862, elected in 1859 on the Republican ticket; and from 1865 to 1867, elected in 1864 on the Union ticket.
He is associated with the David P. Forrest house at 39 Front Street in Schenectady, New York.
This article about a mayor in New York is a stub.