Parties represented in the Legislative Assembly[edit]
Alberta Party (since 1985, represented 2010-2012, 2015)
Alberta Liberal Party (founded 1905, government of Alberta 1905-1921; represented in the Legislature 1905-1944, 1948-1971, & since 1986)
Alberta New Democratic Party (founded 1932 (as the CCF) (the CCF's predecessors: the United Farmers of Alberta was government 1921-1935, the Dominion Labour Party had five MLAs in the 1920s); the CCF represented in the Legislature 1944-1959, the ANDP 1966-1967, 1971-1993 & since 1997, current government of Alberta as of May 2015)
Progressive Conservative Association of Alberta (founded 1905 (as the Conservative Party), represented in the Legislature 1905-1921, 1926-1940, 1952-1963, & since 1967, government of Alberta from 1971 - 2015)
Wildrose Party (founded 2008, represented in the Legislature since 2008)
Registered parties never represented in the Legislative Assembly[edit]