Matthew John Kean is an Australian politician, who was the Treasurer of New South Wales in the second Perrottet ministry of New South Wales between October 2021 and March 2023. He was also the Minister for Energy between April 2019 and March 2023 and was also the Deputy Leader of the Liberal Party from August 2022 till March 2023. He has been Shadow Minister for Health since 2023 and has represented Hornsby for the party in the New South Wales Legislative Assembly since 2011.

The 2019 New South Wales state election was held on Saturday 23 March 2019 to elect the 57th Parliament of New South Wales, including all 93 seats in the Legislative Assembly and 21 of the 42 seats in the Legislative Council. The election was conducted by the New South Wales Electoral Commission (NSWEC).