Matthew John Kean (born 16 September 1981) is a former Australian politician who is the Chair of the Climate Change Authority.

Kean grew up in the Berowra area and was educated at Saint Ignatius' College, Riverview before attaining a Bachelor of Business from the University of Technology, Sydney.

He subsequently worked for Catherine Cusack MLC as an adviser while she was shadow minister for Juvenile Justice and Women.

[16][17] His call for the $10 million campaign received support from Professor Ian Hickey and the Minister for Mental Health Kevin Humphries.

Keage subsequently shared the illicit text messages with the media, describing it as predatory behaviour by Kean.

[31] Following the resignation of Berejiklian,[32] Dominic Perrottet was elected as leader of the Liberal Party of New South Wales and sworn in as Premier.

[34] In a December 2021 rearrangement of the Perrottet ministry, Kean was appointed as Minister for Energy, and retained the portfolio of Treasurer.