The 1967 Mount Marshall state by-election was a by-election held on 2 September 1967 for the Western Australian Legislative Assembly seat of Mount Marshall in the northeastern agricultural part of the state.
The by-election was triggered by the death of Country Party member George Cornell on 30 June 1967.
The seat of Mount Marshall, first established in 1930, was considered to be a safe seat for the Country Party. At the time of the by-election, the seat included the towns of Bencubbin, Dowerin, Kellerberrin, Koorda, Mukinbudin, Trayning and Wyalkatchem, as well as many smaller towns and settlements in the region.
Candidates.
The by-election attracted three candidates. Ray McPharlin, representing the Country Party, was a farmer from Dalwallinu who had served on the Dalwallinu shire council from 1958 until 1964. Bill McNee, representing the Liberal and Country League, had farmed at Wyalkatchem and Koorda and was at different times president of both towns' Liberal branches. Djordje Miličić represented the Labor Party.
Results.
Ray McPharlin retained the seat for the Country Party. No swings are noted due to the seat being uncontested at the 1965 election.
! scope="col" colspan="2" style="width: 130px"|Party
! scope="col" style="width: 17em"|Candidate
! scope="col" style="width: 5em"|Votes
! scope="col" style="width: 3.5em"|%
! scope="col" style="width: 3.5em"| ;templatestyles src="Template:Tooltip/styles.css" / ;±%
! colspan="3" style="text-align:right;" | Total formal votes
! colspan="3" style="text-align:right;" | Informal votes
! colspan="3" style="text-align: right; margin-right: 0.5em" scope=row | Turnout
References.
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