Cardston-Taber-Warner 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 1996 and 2019.
The district was created in the 1996 boundary redistribution when Cardston-Chief Mountain and Taber-Warner were merged. The district comprises most of southern southwest Alberta on the United States-Canada border. It is mostly rural and contains a wide range of topography from Mountains to farmlands, including Waterton Lakes National Park and the Blood Reserve. Cardston-Taber-Warner and its antecedents have a long history that dates back to the old Cardston riding in the Northwest Territories.
The district has been held by right of center parties since it was created in 1997, and has held the distinction of being one rural riding not continuously held by the Progressive Conservatives in Alberta before many were lost in the 2012 Alberta general election. The Progressive Conservatives elected Ron Hirath and then Broyce Jacobs and the Alberta Alliance captured the district in 2004 holding it for a term before Broyce Jacobs won it back in 2008. The Wildrose Party won the district when Gary Bikman won it in the 2012 Alberta general election, and regained the seat in the 2015 Alberta general election, months after Bikman crossed to the PC Party.
The electoral district was created in the 1996 boundary re-distribution from the old ridings of Cardston-Chief Mountain and Taber-Warner.
The 2010 Alberta boundary re-distribution saw only one minor change made to the riding when the Blood Reserve was transferred to the district from Livingstone-Macleod.[1]
The Cardston-Taber-Warner electoral district was dissolved in the 2017 electoral boundary re-distribution, and portions of the district would form the newly created Cardston-Siksika and Taber-Warner electoral districts.[2]