2025 Western Australian state election

The 2025 Western Australian state election was held on 8 March 2025 to elect members to the Parliament of Western Australia, where all 59 seats in the Legislative Assembly and all 37 seats in the Legislative Council were up for election.

The Labor government, led by Premier Roger Cook, won a third consecutive four-year term in a landslide, becoming the first party to win a third term in Western Australia since 1989. Labor were challenged by the Liberal Party, led by Libby Mettam and by the National Party, led by Opposition Leader Shane Love.

This was Labor's third consecutive landslide victory since winning government in 2017 and Labor's second best result after the previous 2021 state election. Labor won 46 seats in the lower house, a decrease of seven seats from their 2021 result. The Liberal Party won 7 seats while the National Party won 6, ensuring that the Liberals returned to official opposition status in the parliament. Labor's primary vote fell by over 18 points to 41.4%, while the Liberal vote increased by more than six and a half percent to 28% and the National vote was 5.2% (up 1.2%).

In the Legislative Council, Labor won 16 seats, the Liberals 10 and Nationals 2; while minor party the Greens won 4 seats. Other minor parties that earned representation in the Council include One Nation, who won 2 seats, as well as Legalise Cannabis, Australian Christians and the Animal Justice Party, who each claimed 1 seat.

Candidates were elected in single-member seats in the Legislative Assembly via full-preferential instant-runoff voting. In the Legislative Council, 37 candidates were elected using single transferable voting across the state, which functioned as a single electorate. Amendments made to electoral law had increased the size of the Legislative Council by one member at this election and also had abolished the former system of six regions of unequal population that each elected six members using single transferable voting.