Gaston Joseph Clément Demers (November 23, 1935 – February 7, 2004) was a politician in Ontario, Canada.
He was a Progressive Conservative member of the Legislative Assembly of Ontario from 1963 to 1971 who represented the northern Ontario riding of Nickel Belt.
Before entering politics, Demers had worked as a journalist for the North Bay Nugget and as a town clerk in Chelmsford.
After leaving politics, he served on the boards of FedNor and of Sudbury's Laurentian Hospital, and was a key lobbyist behind the creation of Collège Boréal.
This article about an Ontario Progressive Conservative Party MPP is a stub.