John Brown (October 19, 1744 – October 19, 1780) of Pittsfield, Massachusetts, was a Revolutionary War officer, a state legislator, and a Berkshire County judge. He played key roles in the conquest of Fort Ticonderoga at the start of the war, during the American invasion of Canada in 1775-1776, and once again in 1777 during Lieutenant General John Burgoyne's invasion of the United States by way of Lake Champlain and the Hudson River.
Brown was the first man to bring formal charges against Benedict Arnold, who was then a prominent American general.
Brown was killed in action at the Battle of Stone Arabia in the Mohawk Valley in 1780.