The Western Australian Division of the Liberal Party of Australia held a leadership vote on 24 November 2020 to determine its leader. The election was conducted among Liberal Party members of the Parliament of Western Australia. It came after its previous leader, Liza Harvey, resigned following poor opinion polling. Deputy leader Bill Marmion also resigned on the same day. The main candidates touted ahead of the election were Dean Nalder, a member of parliament since 2013 and a minister in the Barnett Ministry, and Zak Kirkup, a member of parliament since 2017. Nalder declined to nominate for the leadership after it became clear he did not have the full support of the Liberal Party caucus. As a result, Kirkup won the leadership unopposed, becoming the state's leader of the opposition. Libby Mettam was elected unopposed as the deputy leader.
