James Clinton (August 9, 1736 – September 22, 1812) was an American Revolutionary War officer who, with John Sullivan, led the Sullivan Expedition. He obtained the rank of brevet major general.
He was born in Ulster County in the colony of New York, at Little Britain in the town of New Windsor, now part of Orange County, New York. He was the third son of Col. Charles Clinton, an Anglo-Irish colonist and a colonel in the French and Indian War. He was also the brother of George Clinton, Governor of New York from 1777 to 1795 and U.S. Vice President from 1805 to 1812. James Clinton's first wife was Mary DeWitt, daughter of an old Dutch family. They had seven children, including DeWitt Clinton, later also a Governor of New York, and George Clinton, Jr., who served in Congress. His second wife was Mrs. Mary Gray, and his six children with her included James G. Clinton, who served in Congress.
James Clinton's military experience began in the French and Indian War, where he served in the New York militia. He was commissioned an ensign in 1757 and achieved the rank of captain in 1759. In 1758, commanding a company, he participated, along with his father (Colonel) and brother George (Lieutenant), in General John Bradstreet’s capture of Fort Frontenac (now Kingston, Ontario). He and his brother played a key role in capturing a French vessel.