Michael John Clyde Ronaldson (born 13 February 1954) is a former Australian politician.
He was a Senator for the state of Victoria representing the Liberal Party from July 2005 until February 2016, and previously served in the House of Representatives for Ballarat from 1990 to 2001.
Ronaldson served as the Minister for Veterans' Affairs, the Minister Assisting the Prime Minister for the Centenary of ANZAC, and the Special Minister of State in the Abbott Government from 2013 to 2015.