Leadership spills of the federal parliamentary leadership of the Liberal Party of Australia were held on 21 and 24 August 2018 and were called by the incumbent leader of the party, Prime Minister Malcolm Turnbull. It was nicknamed "spill week" in the media.
Turnbull called the first spill in a regularly scheduled party room meeting of the Liberal Party on 21 August, amid media reports that Minister for Home Affairs Peter Dutton was considering a challenge. Dutton submitted himself as a candidate for the leadership, but was defeated by Turnbull, who won the ballot 48 votes to 35. Dutton then immediately resigned from the ministry.
Dutton requested a second spill motion two days later.