Preston Elliott (May 1, 1875 – January 12, 1939) was a Canadian farmer and politician from Ontario. Born in Chesterville, Ontario to William Elliott and Mary Agnes Rae, he served in the House of Commons of Canada for the Dundas electoral district as a Progressive. Elected in 1921, he was defeated in the 1925 federal election. He was a Progressive candidate in 1926 and a Liberal in 1935, but lost both attempts at re-election. He was a member of the Ginger Group.