# Opinion polling for the 1979 Canadian federal election

This article is about polls leading up to the 1979 Canadian federal election.

## During the 30th Parliament of Canada

Evolution of voting intentions at national level among decided voters :
| Polling firm | Last day of survey | PC | LPC | NDP | SC | Other | Undecided | ME | Sample |
| Election 1979 | May 22, 1979 | 35.89 | 40.11 | 17.88 | 4.61 | 1.51 | | | |
| Gallup | May 16, 1979 | 37.5 | 37.5 | 19 | 5 | — | — | 4 | — |
| CBC-Carleton | May 10, 1979 | 40.9 | 39.6 | 14.5 | 4.4 | 0.6 | — | 3 | 2,322 |
| CTV | May 1979 | 40 | 40 | 17 | 3 | — | — | — | — |
| CBC-Carleton | April 20, 1979 | 40.2 | 38.4 | 16 | 4.6 | — | — | — | 2,286 |
| Gallup | April 5, 1979 | 38 | 43 | 17 | — | — | — | 4 | 1,004 |
| Fabien Roy becomes leader of the SC (March 30, 1979) |||||||||||
| Gallup | March 1979 | 41 | 41 | 15 | — | — | — | 4 | 1,047 |
| Complan | March 1979 | 40 | 42 | 14 | 2 | 2 | — | — | — |
| Lorne Reznowski resigns and Charles-Arthur Gauthier becomes interim leader of SC (February 23, 1979) |||||||||||
| Complan | February 1979 | 37 | 42 | 17 | — | — | — | — | 2,000 |
| Gallup | February 1979 | 38 | 39 | 19 | — | — | — | — | — |
| Gallup | January 6, 1979 | 40 | 39 | 17 | — | — | — | — | — |
| Gallup | December 1978 | 40 | 38 | 18 | — | 4 | — | — | 1,015 |
| Gallup | November 1978 | 45 | 35 | 18 | — | 2 | — | — | 1,035 |
| Gallup | October 1978 | 42 | 37 | 17 | — | 4 | — | — | — |
| Gallup | September 9, 1978 | 38 | 41 | 17 | — | — | — | — | — |
| Gallup | August 1978 | 35 | 45 | 15 | — | — | — | 4 | 1,000 |
| Gallup | July 1978 | 34 | 42 | 19 | — | — | — | — | — |
| Lorne Reznowski becomes leader of SC (May 7, 1978) |||||||||||
| Gallup | May 1978 | 39 | 43 | 15 | — | — | — | — | — |
| Gilles Caouette resigns and Charles-Arthur Gauthier becomes interim leader of SC (April 11, 1978) |||||||||||
| Gallup | April 1978 | 41 | 41 | 14 | — | 4 | — | 4 | 1,035 |
| Gallup | March 1978 | 34 | 45 | 17 | — | 4 | — | — | — |
| Gallup | February 1978 | 34 | 45 | 17 | — | 4 | 38 | — | — |
| Gallup | December 1977 | 34 | 42 | 19 | — | 5 | 36 | — | 1,010 |
| Gallup | November 1977 | 34 | 44 | 18 | — | 4 | 33 | — | — |
| Gallup | October 1977 | 32 | 49 | 15 | — | 5 | — | — | — |
| Gallup | September 1977 | 30 | 49 | 18 | — | 3 | — | — | — |
| Gallup | August 1977 | 29 | 50 | 17 | — | 4 | — | — | — |
| Gallup | July 1977 | 27 | 51 | 18 | — | 4 | — | — | — |
| André-Gilles Fortin died (June 24, 1977) Gilles Caouette becomes interim leader of SC (June 29, 1977) |||||||||||
| Gallup | June 1977 | 27 | 51 | 18 | — | — | — | — | — |
| Gallup | May 1977 | 32 | 47 | 17 | — | — | — | — | — |
| Gallup | April 1977 | 34 | 44 | 18 | — | — | 39 | — | — |
| Gallup | March 1977 | 36 | 42 | 17 | — | — | — | — | — |
| Gallup | February 1977 | 37 | 41 | 17 | — | 4 | — | — | — |
| Gallup | January 1977 | 45 | 35 | 16 | — | 4 | — | — | — |
| Gallup | December 1976 | 47 | 33 | 16 | — | 4 | 35 | — | 1,053 |
| André-Gilles Fortin becomes leader of the SC (November 7, 1976) |||||||||||
| Gallup | November 1976 | 42 | 35 | 17 | — | 6 | 35 | 4 | 1,058 |
| Gallup | October 1976 | 44 | 33 | 17 | — | 6 | — | — | — |
| Réal Caouette resigns as leader of the SC (September 16, 1976) |||||||||||
| Gallup | September 1976 | 45 | 33 | 16 | — | 6 | — | — | — |
| Gallup | August 1976 | 47 | 29 | 17 | — | 7 | — | — | — |
| Gallup | July 1976 | 46 | 31 | 17 | — | 5 | 33 | 4 | 1,011 |
| Gallup | June 1976 | 44 | 34 | 16 | — | 5 | — | — | — |
| Gallup | May 1976 | 43 | 31 | 21 | — | 5 | — | — | — |
| Gallup | April 1976 | 46 | 31 | 17 | — | 6 | — | — | — |
| Gallup | March 1976 | 43 | 34 | 17 | — | 6 | 29 | — | — |
| Joe Clark becomes leader of the PC party (February 22, 1976) |||||||||||
| Gallup | February 1976 | 37 | 38 | 19 | — | 6 | — | — | — |
| Gallup | January 1976 | 37 | 39 | 17 | — | 7 | — | — | — |
| Gallup | December 1975 | 36 | 38 | 19 | — | 7 | — | — | — |
| Gallup | November 1975 | 32 | 38 | 22 | — | 8 | — | — | — |
| Gallup | October 1975 | 33 | 40 | 20 | — | 7 | — | — | — |
| Ed Broadbent becomes leader of the NDP (July 7, 1975) |||||||||||
| Gallup | July 1975 | 36 | 39 | 17 | — | 8 | 41 | 4 | 1,039 |
| Gallup | June 1975 | 33 | 41 | 17 | — | 9 | — | — | — |
| Gallup | May 1975 | 35 | 41 | 18 | — | 6 | — | — | — |
| Gallup | April 1975 | 32 | 44 | 17 | — | 7 | — | — | — |
| Gallup | March 1975 | 31 | 47 | 16 | — | 6 | — | — | 1,058 |
| Gallup | February 1975 | 30 | 47 | 17 | — | 6 | — | — | — |
| Gallup | January 1975 | 31 | 46 | 17 | — | 6 | — | — | — |
| Gallup | December 1974 | 32 | 44 | 16 | — | 8 | — | — | — |
| Gallup | November 1974 | 33 | 45 | 16 | — | 6 | — | — | — |
| Gallup | October 1974 | 29 | 48 | 15 | — | 8 | — | — | — |
| Gallup | September 1974 | 28 | 48 | 16 | — | 8 | — | — | — |
| Election 1974 | July 8, 1974 | 35.46 | 43.15 | 15.44 | 5.06 | 0.89 | | | |