John Torrance (June 8, 1786 – January 20, 1870) was a merchant and entrepreneur of Montreal, Lower Canada. He entered the railroad industry in the 1830s and ran steamboats on the St. Lawrence River. He was also a director of the Bank of Montreal and closely involved with many aspects to do with the progression of Montreal from the 1820s to the 1850s. His home, St. Antoine Hall, was one of the early estates of the Golden Square Mile.