List of premiers of Western Australia by time in office explained

This is a list of premiers of Western Australia by time in office. The basis of the list is the inclusive number of days between dates.

Rank by time in office

	Rank	No.	Officeholder	Portrait	Party	District	Assumed office	Left office	Time in office (term)	Time in office (total)	Election wins
		1.	19th	Sir David Brand		Liberal	MLA for Greenough	2 April 1959	3 March 1971			1959 1962 1965 1968
		2.	1st	Sir John Forrest		Pro-Forrest	MLA for Bunbury	29 December 1890	15 February 1901			1890 1894 1897
	3.	14th	Philip Collier		Labor	MLA for Boulder	16 April 1924	24 April 1930		9 years, 126 days	1924 1927 1933 1936
24 April 1933							20 August 1936
		4.	15th	John Willcock		Labor	MLA for Geraldton	20 August 1936	31 July 1945			1939 1943
		5.	29th	Colin Barnett		Liberal	MLA for Cottesloe	23 September 2008	17 March 2017			2008 2013
		6.	26th	Richard Court		Liberal	MLA for Nedlands	16 February 1993	10 February 2001			1993 1996
	7.	13th	Sir James Mitchell		Nationalist	MLA for Northam	17 May 1919	16 April 1924		7 years, 335 days	1921 1930
24 April 1930							24 April 1933
		8.	21st	Sir Charles Court		Liberal	MLA for Nedlands	8 April 1974	25 January 1982			1974 1977 1980
		9.	30th	Mark McGowan		Labor	MLA for Rockingham	17 March 2017	8 June 2023			2017 2021
		10.	18th	Albert Hawke		Labor	MLA for Northam	23 February 1953	2 April 1959			1953 1956
		11.	17th	Sir Ross McLarty		Liberal	MLA for Murray-Wellington Murray	1 April 1947	23 February 1953			1947 1950
		12.	23rd	Brian Burke		Labor	MLA for Balga	25 February 1983	25 February 1988			1983 1986
		13.	27th	Dr Geoff Gallop		Labor	MLA for Victoria Park	16 February 2001	25 January 2006			2001 2005
		14.	10th	John Scaddan		Labor	MLA for Brown Hill-Ivanhoe	7 October 1911	27 July 1916			1911 1914
		15.	8th	Sir Newton Moore		Ministerial	MLA for Bunbury	7 May 1906	16 September 1910			1908
		16.	20th	John Tonkin		Labor	MLA for Melville	3 March 1971	8 April 1974			1971
		17.	25th	Dr Carmen Lawrence		Labor	MLA for Glendalough	12 February 1990	16 February 1993
		18.	28th	Alan Carpenter		Labor	MLA for Willagee	25 January 2006	23 September 2008
	19.	5th	Sir Walter James		Opposition	MLA for East Perth	1 July 1902	10 August 1904
	20.	9th	Frank Wilson		Nationalist	MLA for Sussex	16 September 1910	7 October 1911		1 year, 357 days
Liberal (WA)					27 July 1916		28 June 1917
		21.	24th	Peter Dowding		Labor	MLA for Maylands	25 February 1988	12 February 1990			1989
		22.	11th	Sir Henry Lefroy		Nationalist	MLA for Moore	28 June 1917	17 April 1919			1917
		23.	16th	Frank Wise		Labor	MLA for Gascoyne	31 July 1945	1 April 1947
		24.	31st	Roger Cook		Labor	MLA for Kwinana	8 June 2023	Incumbent		^[1]
		25.	22nd	Ray O'Connor		Liberal	MLA for Mount Lawley	25 January 1982	25 February 1983
		26.	6th	Henry Daglish		Labor	MLA for Subiaco	10 August 1904	25 August 1905
	27.	3rd	George Leake		Opposition	MLA for West Perth	27 May 1901	21 November 1901		1 year, 3 days	1901
23 December 1901							1 July 1902
		28.	7th	Sir Cornthwaite Rason		Ministerial	MLA for Guildford	25 August 1905	7 May 1906			1905
		29.	2nd	George Throssell		Pro-Forrest	MLA for Northam	15 February 1901	27 May 1901
		30.	4th	Alf Morgans		Ministerial	MLA for Coolgardie	21 November 1901	23 December 1901
		31.	12th	Sir Hal Colebatch		Nationalist	Member of the Legislative Council	17 April 1919	17 May 1919

See also

• Premier of Western Australia
• List of prime ministers of Australia by time in office
• List of Australian heads of government by time in office
• List of premiers of New South Wales by time in office
• List of premiers of Queensland by time in office
• List of premiers of Tasmania by time in office
• List of premiers of South Australia by time in office
• List of premiers of Victoria by time in office
• List of chief ministers of the Northern Territory by time in office
• List of chief ministers of the Australian Capital Territory by time in office

Notes and References

1. Roger Cook's time in office as of