Steven Spence Marshall (born 21 January 1968) is a former Australian politician who served as the 46th premier of South Australia between 2018 and 2022.

[7] He continued running the firm until 2001, when mounting pressure from imports forced the family to sell the business to Steinhoff International.

[6] This led to a role on the Steinhoff Asia-Pacific board, which he then left in order to take on a number of different positions in the South Australian business sector, including chairman of Jeffries Soils and general manager of Michell Pty Ltd.[4] Marshall served on the South Australian Manufacturing Industry Advisory Board prior to entering politics in 2010.

[8] In December 2011, Opposition Leader Isobel Redmond promoted Marshall to the front bench, assigning him the shadow portfolios of industry and trade, defence industries, small business, science and information economy, environment and conservation, sustainability and climate change.

[20] The day before the election, Marshall made a political gaffe, saying by mistake "If people in South Australia want change, they want a better future, they want to grow our economy then they need to vote Labor tomorrow".

[21][22][23] Marshall contested Dunstan, essentially a renamed version of Norwood, and suffered a 1.7% two-party (2PP) swing.

Four hours after the close of polls on election day, at approximately 10pm ACDST, Weatherill telephoned Steven Marshall and conceded defeat.

Marshall was introduced to the election day function by former Liberal Premier John Olsen and claimed victory.

[31][32][33][34] Two days after the election, with the result beyond doubt even though counting was still under way, Marshall had himself, deputy leader Vickie Chapman, and Father of the South Australian Parliament Rob Lucas sworn in as an interim three-person government by the Governor of South Australia, Hieu Van Le.

[37] In late 2018, Arts South Australia was dismantled and its functions transferred to direct oversight by the Department of the Premier and Cabinet.

[38][39][40] On 11 January 2020, Marshall assumed[41] the responsibilities of the Tourism ministry when he relieved David Ridgway of the role in the immediate aftermath of the devastation of key South Australian tourist areas during the 2019–20 bushfires.

This left Dunstan as the most marginal seat in the chamber, with Marshall now sitting on a paper-thin majority of 0.5 percent.

His premiership formally ended on 21 March when the new cabinet led by Peter Malinauskas was sworn in at Government House.

[48] He is the founding chairman of Compost for Soils, a program started in South Australia that has subsequently been implemented nationally.