Elections in Alberta

The Canadian province of Alberta holds elections to its unicameral legislative body, the Legislative Assembly of Alberta. The maximum period between general elections of the assembly is five years, but the Lieutenant Governor is able to call one at any time. However, the Premier has typically asked the Lieutenant Governor to call the election in the fourth or fifth year after the preceding election. The number of seats has increased over time, from 25 for the first election in 1905, to the current 87.

To date, no political party has returned to power in Alberta after being removed in a previous election. The province has been ruled by four "dynasties": the Liberal Party (1905–1921); the United Farmers of Alberta (1921–1935), the Social Credit Party (1935–1971), and the Progressive Conservative (PC) Association (1971–2015). No minority government has ever been elected. Thus, Alberta can be said to have continuously had a dominant-party system for its entire political history, though the dominant party has changed over time. In 2015, the NDP were elected to government for the first time in Alberta's history, ending the longest political dynasty in Canada.

The table below shows the total number of seats won by each political party in each election. Full details on any election are linked via the year of the election at the start of the row, and details for the legislature that followed the election are available at the legislature number.

Alberta has used a variety of electoral systems in its history, notably a combination of single transferable vote (STV) and alternative vote (AV) for nearly four decades.

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