Members of the Western Australian Legislative Assembly, 1921–1924

This is a list of members of the Western Australian Legislative Assembly between the 1921 election and the 1924 election, together known as the 11th Parliament. During the term, the Country Party split into rival factions, the Ministerial Country Party (MCP) which comprised the bulk of the parliamentary party—many of whom had switched allegiance from other parties since 1919—and the Executive Country Party (ECP), which was loyal to the Primary Producers' Association, which the Country Party was intended to represent in Parliament. After the 1924 election, which significantly strengthened the latter at the expense of the former, the Ministerial arm merged with the Nationalist Party.