John Scadding (1754 – March 1, 1824) was an early settler in York, Upper Canada (now Toronto). He served as clerk to Upper Canada's first lieutenant governor John Graves Simcoe.
John Scadding is remembered via the Scadding Cabin, the oldest building in Toronto. The cabin was built to fulfill his settlement duties to the Crown on his property east of the Don River. He built numerous other buildings on his property including more commodious buildings, a large barn, and a farm house. However, the Scadding cabin is remembered instead because it is older and the other buildings were torn down for the Industrial Farm grounds.
John Scadding married Melicent Triggs (1768 - February 26, 1860) in about 1806, and they had three sons, John Scadding (March 5, 1807 - June 18, 1845), Charles Scadding (October 10, 1809 - June 19, 1892), and Henry Scadding (July 29, 1813 - May 6, 1901). His son Henry became a prominent Toronto figure and a well known historiographer of York and early Toronto.
John Scadding died March 1, 1824 after injuring himself falling out of a tree.