David Speirs

David Speirs
Leader of the Opposition in South Australia
In office
19 April 2022 (2022-04-19)  8 August 2024 (2024-08-08)
PremierPeter Malinauskas
DeputyJohn Gardner
Preceded byPeter Malinauskas
Succeeded byVincent Tarzia
Leader of the South Australian
Liberal Party
In office
19 April 2022 (2022-04-19)  8 August 2024 (2024-08-08)
DeputyJohn Gardner
Preceded bySteven Marshall
Minister for Environment and Water
In office
22 March 2018 (2018-03-22)  21 March 2022 (2022-03-21)
PremierSteven Marshall
Preceded byIan Hunter (as Minister for Sustainability, Environment and Conservation and as Minister for Water and the River Murray)
Succeeded bySusan Close (as Minister for Climate, Environment and Water)
Member of the South Australian House of Assembly
for Black
In office
17 March 2018  15 October 2024
Preceded byNew seat
Succeeded byAlex Dighton
Member of the South Australian House of Assembly
for Bright
In office
15 March 2014  17 March 2018
Preceded byChloë Fox
Succeeded byDistrict abolished
Personal details
Born
David James Speirs

(1984-12-15) 15 December 1984
Galloway, Scotland, United Kingdom
Political partyLiberal Party of Australia (SA)
EducationStranraer Academy
Alma materUniversity of Adelaide

David James Speirs (born 15 December 1984) is a Scottish-Australian former politician and convicted drug dealer, who was the Leader of the Opposition in South Australia and Leader of the South Australian Liberal Party from April 2022 until August 2024. He was a member of the South Australian House of Assembly from the 2014 state election, representing the electorate of Bright from 2014 to 2018, and its successor, the electorate of Black, from 2018 to 2024.

Speirs served as the Minister for Environment and Water in the Marshall Ministry between March 2018 and March 2022.

On 8 August 2024 Speirs resigned as State Liberal Party leader, triggering a contest for his position, which was won by Vincent Tarzia. On 5 October, Speirs announced he would resign from the SA Parliament after he was charged with drug-supply offences.