The 48th General Assembly of Prince Edward Island was in session from February 21, 1956, to August 3, 1959. The Liberal Party led by Alexander Wallace Matheson formed the government.
Augustin Gallant was elected speaker. Edward Foley replaced Gallant as speaker in 1959.
There were four sessions of the 48th General Assembly:
| Session | Start | End |
|---|---|---|
| 1st | February 21, 1956 | March 29, 1956 |
| 2nd | February 26, 1957 | April 18, 1957 |
| 3rd | March 11, 1958 | April 12, 1958 |
| 4th | February 10, 1959 | March 25, 1959 |
| District | Assemblyman | Party | First elected / previously elected | |
|---|---|---|---|---|
| 1st Kings | William Acorn | Liberal | 1951 | |
| 2nd Kings | Harvey Douglas | Liberal | 1950 | |
| 3rd Kings | Joseph Campbell | Liberal | 1947, 1955 | |
| 4th Kings | Lorne Bonnell | Liberal | 1951 | |
| 5th Kings | Stephen Hessian | Liberal | 1919, [a] 1935, 1955 | |
| District | Councillor | Party | First elected / previously elected | |
| 1st Kings | Brenton St. John | Liberal | 1949 | |
| 2nd Kings | Leo Rossiter | Progressive Conservative | 1955 | |
| 3rd Kings | Keir Clark | Liberal | 1947 | |
| 4th Kings | Alexander Wallace Matheson | Liberal | 1940, [b] 1947 | |
| 5th Kings | George Saville | Liberal | 1935 |
| District | Assemblyman | Party | First elected / previously elected | |
|---|---|---|---|---|
| 1st Prince | Prosper Arsenault | Liberal | 1955 | |
| 2nd Prince | George Dewar | Progressive Conservative | 1955 | |
| 3rd Prince | Augustin Gallant | Liberal | 1954 | |
| 4th Prince | J. George MacKay | Liberal | 1949 | |
| 5th Prince | Edward P. Foley | Liberal | 1935, 1951 | |
| District | Councillor | Party | First elected / previously elected | |
| 1st Prince | Fred Ramsay | Liberal | 1943, 1955 | |
| 2nd Prince | Forrest Phillips | Liberal | 1946 | |
| 3rd Prince | Frank MacNutt | Liberal | 1951 | |
| | 4th Prince | Cleveland Baker | Liberal | 1935, 1947 |
| 5th Prince | Morley Bell | Liberal | 1945, 1955 |
| District | Assemblyman | Party | First elected / previously elected | |
|---|---|---|---|---|
| 1st Queens | Frederic Large | Liberal | 1947, 1955 | |
| 2nd Queens | George Kitson | Liberal | 1940, 1951 | |
| 3rd Queens | Russell C. Clark | Liberal | 1927, 1935 | |
| 4th Queens | Dougald MacKinnon | Liberal | 1935 | |
| 5th Queens | Earle MacDonald | Liberal | 1951 | |
| District | Councillor | Party | First elected / previously elected | |
| 1st Queens | W. F. Alan Stewart [c] | Liberal | 1927, 1935 | |
| Frank Myers (1957) | Progressive Conservative | 1951, 1957 | ||
| 2nd Queens | Reginald Bell | Progressive Conservative | 1943 | |
| 3rd Queens | Eugene Cullen | Liberal | 1944 | |
| 4th Queens | Harold P. Smith | Liberal | 1953 | |
| 5th Queens | Alex MacIsaac | Liberal | 1955 |