The First Malinauskas ministry was the 74th ministry (cabinet) of the Government of South Australia, led by Peter Malinauskas of the South Australian Labor Party. It was formed after Labor's victory at the 2022 state election succeeding the Marshall ministry.
The ministry was initially made up of 14 members of the Labor Party and 1 independent member, Geoff Brock, who was previously also a minister at the Weatherill Labor ministry. Following Brock's resignation from cabinet in 2024, Independent MP Dan Cregan resigned as Speaker and joined the ministry. Cregan resigned from cabinet in order to retire from politics in 2025. The final ministry was made up of 15 Labor members, with a majority (8) being female. The ministry, according to Malinauskas himself, was centrist.
On 18 September 2025, Deputy Premier Susan Close and Treasurer Stephen Mullighan both resigned from the ministry in anticipation of their respective retirements from parliament at the upcoming election. Leader of the Government in the Legislative Council Kyam Maher was appointed Deputy Premier, and Tom Koutsantonis took on the role of Treasurer, a position he previously held in the Weatherill ministry between 2014 and 2018.
The following changes were also made to the ministry:
On 29 January 2025, Premier Malinauskas made several changes to the ministry following the resignation of Dan Cregan, who had served as Minister for Police, Emergency Services and Correctional Services and Special Minister of State for approximately nine months. Cregan's portfolios were divided among ministers Stephen Mullighan (Police), Kyam Maher (Special Minister of State) and Emily Bourke (Emergency Services and Correctional Services). Bourke had been elevated to the full ministry after serving as an assistant minister since 2022.
The following changes were also made to the ministry:
In April 2024, Independent member for Stuart and Minister for Local Government, Regional Roads and Veterans Affairs, Geoff Brock, resigned from cabinet. Independent former Liberal member for Kavel, Dan Cregan, resigned his position of Speaker of the South Australian House of Assembly and joined the ministry. Cregan assumed the role of Minister for Police, Emergency Services, and Correctional Services, as well as Special Minister of State.
The following changes were also made to the ministry:
The ministry commenced on 21 March 2022, with Malinauskas, deputy party leader Susan Close and Stephen Mullighan sworn in as a three-member ministry. Malinauskas was sworn in to cover other ministerial portfolios on an acting basis until the rest of the ministry was announced and sworn in on 24 March 2022.
The ministry evolved largely from Malinauskas' shadow ministry before the election. Nick Champion, Joe Szakacs and independent Geoff Brock were new additions to the frontbench, while Emily Bourke was appointed as an Assistant Minister instead and Lee Odenwalder was dropped from the frontbench completely.
The portfolios that Malinauskas held on an acting basis between 21 and 24 March 2022 are not listed below.