21st Alberta Legislature
Majority parliament
12 June 1986 – 20 February 1989
Parliament leaders
Premier	Don Getty 1 November 1985 - 14 December 1992
Cabinet	Getty cabinet
Leader of the Opposition	Ray Martin 6 November 1984 - 15 June 1993
Party caucuses
Government	Progressive Conservative Association
Opposition	New Democratic Party
Recognized	Liberal Party
	Representative
Legislative Assembly
Speaker of the Assembly	David J. Carter 12 June 1986 - 30 August 1993
Members	83 MLA seats
Sovereign
Monarch	Elizabeth II February 6, 1952 – September 8, 2022
Lieutenant Governor	Hon. Helen Hunley 22 January 1985 - 11 March 1991
Sessions
1st session June 12, 1986 – March 4, 1987
2nd session March 5, 1987 – March 16, 1988
3rd session March 17, 1988 – February 16, 1989
4th session February 17. 1989 – February 17, 1989
← 20th → 22nd

The 21st Alberta Legislative Assembly was in session from June 12, 1986, to February 20, 1989, with the membership of the assembly determined by the results of the 1986 Alberta general election held on May 8, 1986. The Legislature officially resumed on June 12, 1986, and continued until the fourth session was prorogued on February 17, 1989, and dissolved on February 20, 1989, prior to the 1989 Alberta general election on March 20, 1989.^[1]

Alberta's twentieth government was controlled by the majority Progressive Conservative Association of Alberta for the fifth time, led by Premier Don Getty. The Official Opposition was led by Ray Martin of the New Democratic Party. The Speaker was David J. Carter.

Party standings after the 21st General Election

• A party requires four seats to have official party status in the legislature. Parties with fewer than four seats are not entitled to party funding although their members will usually be permitted to sit together in the chamber.

Members elected

For complete electoral history, see individual districts

Note:
¹Nancy Betkowski later changed her last name to Nancy MacBeth.