Katherine Ruth Gallagher is an Australian politician who has been serving as the Minister for Finance, Minister for Women, Minister for the Public Service and Vice-President of the Executive Council in the Albanese Government since 2022 having formerly served as the 6th Chief Minister of the Australian Capital Territory from 2011 to 2014. She has been a Senator for the Australian Capital Territory since the 2019 federal election, as a member of the Australian Labor Party (ALP). She previously served in the Senate from 2015 to 2018.

The Minister for Finance in the Government of Australia is responsible for monitoring government expenditure and financial management. The current minister is Senator Katy Gallagher who has held the position since May 2022.