Fort Erie, town (1990 pop. 23,253), S Ont., Canada, on the Niagara River, opposite Buffalo, N.Y. A number of branch factories of U.S. firms are in the town, which is connected to the United States by bridge. Lumber is a chief industry. Fort Erie was built in 1764 and was taken from the British in the War of 1812 by American forces. In Aug., 1814, the Americans withstood a siege by a superior British force but afterward blew up and abandoned the stronghold. The modern town developed in the 20th cent.