John Lovett (February 20, 1761 in Newent Society, New London County, Connecticut – August 12, 1818 in Fort Meigs, Wood County, Ohio) was an American politician from New York.
He moved to Albany, New York, and thence to Fort Miller, where he was employed as general agent and land steward.
He was member from Rensselaer County of the New York State Assembly in 1800-01.
Afterwards he returned to Albany and was Clerk of the Common Council until the outbreak of the War of 1812 during which he was military secretary to Major General Stephen Van Rensselaer.
Lovett was wounded at the Battle of Queenston Heights in October 1812, and returned to Albany.