William Francis Telfer (21 August 1885 – 25 August 1955) was an Australian politician who was a member of the Legislative Assembly of Western Australia from 1943 to 1947, representing the seat of Avon.
He and his father came to Western Australia in 1910, settling in the Wheatbelt town of Merredin.
Telfer worked as a storekeeper and farmer, and in 1936 was elected to the Merredin Road Board, of which he would remain a member until 1955.
[1] Telfer was elected to parliament at the 1943 state election, defeating the sitting Country member, Ignatius Boyle, by 15 votes.
At the 1947 election, which saw the defeat of the four-term Labor government, Telfer lost his seat to the new Country Party candidate, George Cornell.