Dean Cambell Nalder (born 5 February 1966) is an Australian former politician who was a member of the Legislative Assembly of Western Australia for the Liberal Party from 2013 to 2021, representing the seat of Alfred Cove until 2017, and Bateman following the 2017 electoral boundary re-distribution.

Nalder entered parliament at the 2013 state election, winning the seat of Alfred Cove from the independent incumbent Janet Woollard.

[10] The allegations included that he had failed to properly disclose a personal investment he had made in Metier Asia and had a potential conflict of interest relating to a car leasing company which provided services to public servants under a scheme administered by his own department.

"[11] In October 2015, WA Auditor General Colin Murphy found Nalder's refusal to provide information to Parliament about the controversial Perth Freight Link was "not appropriate" and "not reasonable".

[12] A redistribution ahead of the 2017 state election saw Alfred Cove abolished, with most of Nalder's base transferred to neighbouring Bateman, held by fellow first-term Liberal Matt Taylor.

However, Nalder deferred the project in 2015 for three years, in response to the Barnett Government's financial woes and the loss of the state's AAA Credit Rating.

Nalder announced the government would investigate splitting the project into two parts, to allow an earlier start to be made on construction, with priority given to the Balga – CBD section.

[18] In November 2020, Nalder announced he would run for the Liberal leadership, following Liza Harvey's resignation four months out from the 2021 Western Australian state election,[19] but dropped out of the race shortly before the vote, citing a lack of sufficient support.