Barrhead-Westlock was a provincial electoral district in Alberta, Canada mandated to return a single member to the Legislative Assembly of Alberta using the first-past-the-post method of voting from 1993 to 2004.

[1] Barrhead-Westlock was created from Barrhead, Westlock-Sturgeon and a small portion of Athabasca-Lac La Biche in 1993.

[2] The riding was replaced by Barrhead-Morinville-Westlock in the 2003 electoral boundary re-distribution, which covered the entire area of Barrhead-Westlock and a small portion of Redwater.

[3] Barrhead-Westlock's only MLA was Ken Kowalski, who had already served as the Progressive Conservative member for Barrhead since 1979.

When Barrhead-Westlock was abolished for the 2004 election, Kowalski continued his political career, serving two more terms in the new riding of Barrhead-Morinville-Westlock as MLA and Speaker of the Assembly.