a town of the United States of North America, capital of Niagara county, New York, on the Erie Canal, which here descends to the Genesee level by means of ten double combined locks, 23 miles E.N.E. of Niagara Falls by railway. The town contains churches belonging to all the principal denominations, and is plentifully supplied with educational establishments. The main cause of the prosperity of Lockport is the vast water-power it derives from the locks on the Erie Canal, providing its numerous flour, saw, and other mills with abundant motive power. Among the principal of its manufactures are wool, cotton, and iron. A large trade is also carried on with Buffalo, Rochester, and other places by means of the canal. Pop. (1852) about 14,000.