Reuben Humphrey (September 2, 1757 – August 12, 1831) was a United States representative from New York.
He took part in several actions, including the Battle of Long Island, and received his commission as an officer.
Humphrey continued his military service after the Revolution and was discharged as a major in 1796.
He held several local offices, including serving in the Connecticut House of Representatives in 1779, 1791 and 1793.
In 1810 he served again as Onondaga Town Supervisor, and he was a member of the New York State Senate from 1811 to 1815.