William Tupper (born 7 October 1933) was a Progressive Conservative party member of the Canadian House of Commons. He was a businessman, geologist and professor of geology by career.
He was elected at Nepean—Carleton electoral district in the 1984 federal election, thus he served in the 33rd Canadian Parliament. In the 1988 federal election, he ran in the Nepean riding but was defeated by Beryl Gaffney of the Liberal party.