Michael John Atkinson (born 17 June 1958), a former Australian politician in the South Australian Branch of the Australian Labor Party, was a member of the Parliament of South Australia from 1989 to 2018.Atkinson was the 34th Speaker of the South Australian House of Assembly in the Jay Weatherill government from 2013 to 2018.
Before this post, he was the 46th Attorney-General of South Australia, Minister for Justice, Minister for Veterans' Affairs, and Minister for Multicultural Affairs in the Mike Rann Labor Government.
A day after the 2010 election, he stepped down as Attorney-General and resigned from the Cabinet.
Atkinson represented the South Australian House of Assembly seat of Croydon from the seat's creation in 2002 until 2018, and previously Spence from 1989 until the seat was abolished and replaced by Croydon in 2002.He was a member of the Australian Journalists Association whilst working for the Adelaide Advertiser.
He is currently a member of the Shop Distributive and Allied Employees Association.