The 57th General Assembly of Prince Edward Island was in session from June 9, 1986, to May 2, 1989. The Liberal Party led by Joe Ghiz formed the government.
Edward Clark was elected speaker.
There were four sessions of the 57th General Assembly:
| Session | Start | End |
|---|---|---|
| 1st | June 9, 1986 | July 18, 1986 |
| 2nd | February 2, 1987 | May 14, 1987 |
| 3rd | February 22, 1988 | May 17, 1988 |
| 4th | February 13, 1989 | February 13, 1989 |