Deputy Premier of Western Australia
Western Australian Coat of Arms
Flag of Western Australia
Incumbent Rita Saffioti since 8 June 2023
Department of the Premier and Cabinet
Style	The Honourable
Member of	Parliament Cabinet Executive Council
Reports to	Premier of Western Australia
Seat	Dumas House, Perth
Nominator	Premier of Western Australia
Appointer	Governor of Western Australia on the advice of the premier
Term length	At the Governor's pleasure
Formation	7 December 1955
First holder	John Tonkin

The deputy premier of Western Australia is a role in the Government of Western Australia assigned to a responsible Minister in the Australian state of Western Australia. It has second ranking behind the premier of Western Australia in Cabinet, and its holder serves as acting premier during absence or incapacity of the premier. The role was only formally established on 7 December 1955, but had existed in practice since the earliest days of responsible government.

List of deputy premiers of Western Australia

Political parties

  Labor Party   Country/National   Liberal Party

No.		Name	Portrait	Term of office
	1	John Tonkin		7 December 1955	2 April 1959
	2	Arthur Watts		2 April 1959	31 January 1962
	3	Crawford Nalder		1 February 1962	3 March 1971
	4	Herb Graham		3 March 1971	30 May 1973
	5	Don Taylor		30 May 1973	8 April 1974
	6	Ray McPharlin		8 April 1974	20 May 1975
	7	Des O'Neil		5 June 1975	5 March 1980
	8	Ray O'Connor		5 March 1980	25 January 1982
	9	Cyril Rushton		25 January 1982	25 February 1983
	10	Mal Bryce		25 February 1983	25 February 1988
	11	David Parker		25 February 1988	13 February 1990
	12	Ian Taylor		13 February 1990	16 February 1993
	13	Hendy Cowan		16 February 1993	16 February 2001
	14	Eric Ripper		16 February 2001	23 September 2008
	15	Kim Hames		23 September 2008	16 February 2016
	16	Liza Harvey		16 February 2016	17 March 2017
	17	Roger Cook		17 March 2017	8 June 2023
	18	Rita Saffioti		8 June 2023	present