David Keith Bernard Basham (born June 1968) is an Australian former politician who served as the Liberal member for Finniss in the South Australian House of Assembly from 2018 until his defeat at the 2026 state election, in a rematch with Independent candidate Lou Nicholson. Basham served as the Minister for Primary Industries and Regional Development in the Marshall Ministry between 2020 and 2022.

Basham was the president of Australian Dairy Farmers before his preselection to run for Finniss.

Political offices
Preceded byStephan KnollMinister for Primary Industries and Regional Development 2020–2022Succeeded byClare Scriven
South Australian House of Assembly
Preceded byMichael PengillyMember for Finniss 2018–2026Succeeded byLou Nicholson
Incumbent