Greg Barns is a former state and federal government adviser and a Hobart based author. He is a former adviser to New South Wales Premier Nick Greiner and federal Finance Minister John Fahey.

Greg Barns ran the 1999 Republic Referendum campaign with Malcolm Turnbull. He is the author of What's Wrong with the Liberal Party? (2003) and Selling the Australian Government: Politics and Propaganda from Whitlam to Howard (2005).

Greg lives in Hobart and is a weekly columnist with the Hobart Mercury.