The 55th General Assembly of Prince Edward Island was in session from June 29, 1979, to August 31, 1982. The Progressive Conservative Party led by Angus MacLean formed the government. When MacLean retired from politics in 1979, James Lee became premier and party leader.
Daniel Compton was elected speaker.
There were four sessions of the 55th General Assembly:
| Session | Start | End |
|---|---|---|
| 1st | June 29, 1979 | August 1, 1979 |
| 2nd | February 7, 1980 | April 12, 1980 |
| 3rd | February 19, 1981 | April 24, 1981 |
| 4th | March 4, 1982 | May 7, 1982 |