# Opinion polling for the 2011 Canadian federal election

This article provides a list of scientific, nationwide public opinion polls that were conducted leading up to the 2011 Canadian federal election.

## Graphical summary

* Graph of polling from the 2008 election to the 2011 election
* Graph of polling during the 2011 election showing trends by polling firm and party
* Graph of polling during the 2011 election showing average trend line and margin of error

## Campaign period

| Polling firm | Last day of survey | Source | CPC | LPC | NDP | BQ | GPC | Other | Type | ME |
| Election results | May 2, 2011 | | 39.6 | 18.9 | 30.6 | 6.0 | 3.9 | 0.9 | — | — |
| Forum Research | May 1, 2011 | | 36 | 19 | 33 | 5 | 6 | | Phone (IVR) | ±1.6 |
| EKOS Research Associates | May 1, 2011 | | 33.9 | 21.0 | 31.2 | 6.4 | 6.0 | 1.5 | Phone (IVR) | ±1.8 |
| Nanos Research | May 1, 2011 | | 37.1 | 20.5 | 31.6 | 5.7 | 3.8 | 1.4 | Phone | ±3.0 |
| Harris-Decima | May 1, 2011 | | 36 | 19 | 30 | 6 | 6 | | Phone | ±3.1 |
| EKOS Research Associates | April 30, 2011 | | 34.6 | 20.4 | 31.4 | 5.4 | 6.3 | 1.8 | Phone (IVR) | ±1.8 |
| Forum Research | April 30, 2011 | 2 | 35 | 19 | 33 | 5 | 7 | | Phone (IVR) | ±1.6 |
| Nanos Research | April 30, 2011 | | 37.0 | 22.7 | 30.6 | 5.5 | 3.2 | | Phone | ±3.0 |
| Abacus Data | April 29, 2011 | | 37 | 18 | 32 | 7 | 7 | | Online | ±3.2 |
| COMPAS | April 29, 2011 | | 46 | 17 | 26 | 7 | 4 | | Phone | ±3.6 |
| Nanos Research | April 29, 2011 | | 38.0 | 23.3 | 29.6 | 5.2 | 3.1 | | Phone | ±3.0 |
| Angus Reid Public Opinion | April 29, 2011 | | 37 | 19 | 33 | 6 | 4 | | Online | ±2.2 |
| Leger Marketing | April 28, 2011 | | 36 | 21 | 31 | 7 | 4 | | Online | ±1.7 |
| Ipsos Reid | April 28, 2011 | | 38 | 18 | 33 | 6 | 4 | | Phone | ±3.1 |
| EKOS Research Associates | April 28, 2011 | | 34.5 | 20.0 | 29.7 | 6.3 | 6.9 | 2.7 | Phone (IVR) | ±1.8 |
| Nanos Research | April 28, 2011 | | 36.4 | 22.0 | 31.2 | 5.7 | 4.0 | | Phone | ±3.1 |
| Harris-Decima | April 27, 2011 | | 35 | 22 | 30 | 5 | 7 | | Phone | ±3.1 |
| EKOS Research Associates | April 27, 2011 | | 34.8 | 22.3 | 27.5 | 6.1 | 6.8 | 2.5 | Phone (IVR) | ±1.9 |
| Nanos Research | April 27, 2011 | | 36.6 | 21.9 | 30.4 | 6.0 | 4.1 | | Phone | ±3.1 |
| EKOS Research Associates | April 26, 2011 | | 34.0 | 22.9 | 28.1 | 6.6 | 6.5 | 1.9 | Phone (IVR) | ±1.9 |
| Forum Research | April 26, 2011 | | 34 | 22 | 31 | 6 | 7 | | Phone (IVR) | ±1.8 |
| Nanos Research | April 26, 2011 | | 37.8 | 22.9 | 27.8 | 5.8 | 4.7 | | Phone | ±3.1 |
| Angus Reid Public Opinion | April 26, 2011 | | 35 | 22 | 30 | 7 | 5 | 1 | Online | ±2.2 |
| EKOS Research Associates | April 25, 2011 | | 33.9 | 24.0 | 27.9 | 6.0 | 6.8 | 1.4 | Phone (IVR) | ±2.0 |
| Innovative Research Group | April 25, 2011 | | 38.4 | 24.9 | 23.9 | 6.4 | 5.3 | | Phone | ±2.49 |
| EKOS Research Associates | April 24, 2011 | | 33.7 | 23.7 | 28.0 | 6.2 | 7.2 | 1.2 | Phone (IVR) | ±1.9 |
| Nanos Research | April 24, 2011 | | 39.2 | 25.6 | 23.6 | 6.5 | 3.6 | | Phone | ±3.1 |
| Nanos Research | April 23, 2011 | | 38.6 | 25.9 | 23.2 | 7.2 | 3.7 | | Phone | ±3.1 |
| Environics | April 21, 2011 | | 39 | 22 | 25 | 7 | 6 | 1 | Phone | ±3.2 |
| Nanos Research | April 21, 2011 | | 37.8 | 26.1 | 23.7 | 7.4 | 3.5 | | Phone | ±3.1 |
| Ipsos Reid | April 20, 2011 | | 43 | 21 | 24 | 6 | 4 | | Phone | ±3.1 |
| Forum Research | April 20, 2011 | | 36 | 23 | 25 | 6 | 6 | | Phone (IVR) | ±2.2 |
| Nanos Research | April 20, 2011 | | 39.0 | 26.7 | 22.1 | 7.5 | 3.4 | | Phone | ±3.1 |
| EKOS Research Associates | April 20, 2011 | | 34.4 | 24.7 | 24.7 | 6.5 | 7.8 | 1.9 | Phone (IVR) | ±2.2 |
| Nanos Research | April 19, 2011 | | 39.1 | 28.4 | 19.8 | 7.7 | 3.9 | | Phone | ±3.1 |
| Nanos Research | April 18, 2011 | | 39.8 | 30.2 | 17.3 | 8.6 | 3.1 | | Phone | ±3.1 |
| Innovative Research Group | April 17, 2011 | | 39 | 28 | 17 | 9 | 6 | 1 | Phone | ±2.25 |
| Environics | April 17, 2011 | | 39 | 24 | 22 | 9 | 6 | 1 | Phone | ±3.2 |
| EKOS Research Associates | April 17, 2011 | | 37.4 | 24.9 | 20.0 | 7.8 | 8.4 | 1.5 | Phone (IVR) | ±2.2 |
| Harris-Decima | April 17, 2011 | | 36 | 28 | 19 | 8 | 7 | | Phone | ±3.1 |
| Nanos Research | April 17, 2011 | | 39.8 | 29.8 | 17.4 | 8.6 | 3.4 | | Phone | ±3.1 |
| Leger Marketing | April 17, 2011 | | 38 | 26 | 22 | 8 | 5 | | Online | ±1.7 |
| Angus Reid Public Opinion | April 16, 2011 | | 36 | 25 | 25 | 9 | 5 | | Online | ±2.2 |
| Nanos Research | April 16, 2011 | | 39.0 | 28.3 | 18.4 | 9.6 | 3.6 | | Phone | ±3.1 |
| Abacus Data | April 15, 2011 | | 37 | 29 | 20 | 8 | 5 | | Online | ±3.2 |
| Nanos Research | April 15, 2011 | | 38.8 | 28.8 | 19.2 | 8.5 | 3.4 | | Phone | ±3.1 |
| Forum Research | April 14, 2011 | | 36 | 25 | 22 | 7 | 8 | | Phone | ±2.2 |
| EKOS Research Associates | April 14, 2011 | | 35.3 | 27.8 | 18.0 | 7.1 | 9.6 | 2.1 | Phone (IVR) | ±2.8 |
| Nanos Research | April 14, 2011 | | 38.7 | 28.8 | 18.6 | 9.0 | 3.7 | | Phone | ±3.1 |
| Nanos Research | April 13, 2011 | | 38.9 | 31.1 | 18.3 | 7.5 | 3.1 | | Phone | ±3.1 |
| EKOS Research Associates | April 12, 2011 | | 33.8 | 28.8 | 19.1 | 7.8 | 9.0 | 1.5 | Phone (IVR) | ±2.9 |
| Nanos Research | April 12, 2011 | | 39.9 | 30.4 | 16.3 | 9.1 | 3.8 | | Phone | ±3.1 |
| COMPAS | April 11, 2011 | | 45 | 24 | 16 | 8 | 7 | | Phone | ±2.1 |
| Innovative Research Group | April 11, 2011 | | 39 | 28 | 17 | 9 | 7 | | Online | ±2.16 |
| Nanos Research | April 11, 2011 | | 39.7 | 31.2 | 16.8 | 7.8 | 4.0 | | Phone | ±3.1 |
| Harris-Decima | April 10, 2011 | | 40 | 28 | 15 | 8 | 8 | | Phone | ±3.1 |
| Nanos Research | April 10, 2011 | | 41.2 | 30.4 | 15.2 | 7.8 | 4.6 | | Phone | ±3.1 |
| Nanos Research | April 9, 2011 | | 39.5 | 31.6 | 14.7 | 8.1 | 4.8 | | Phone | ±3.1 |
| TNS Canada | April 8, 2011 | | 36 | 25 | 18 | 9 | 9 | | Phone | ±3.1 |
| Nanos Research | April 8, 2011 | | 40.5 | 31.7 | 13.2 | 9.2 | 4.0 | | Phone | ±3.1 |
| Ipsos Reid | April 7, 2011 | | 41 | 26 | 19 | 9 | 4 | | Phone | ±3.1 |
| EKOS Research Associates | April 7, 2011 | | 36.2 | 27.7 | 16.6 | 8.3 | 8.5 | 2.8 | Phone (IVR) | ±2.1 |
| Nanos Research | April 7, 2011 | | 40.6 | 31.1 | 14.7 | 8.7 | 3.4 | | Phone | ±3.1 |
| Forum Research | April 6, 2011 | | 38 | 26 | 20 | 8 | 9 | | Phone | ±2.2 |
| Nanos Research | April 6, 2011 | | 39.6 | 30.4 | 17.2 | 8.3 | 3.2 | | Phone | ±3.1 |
| Environics | April 5, 2011 | | 38 | 25 | 20 | 8 | 8 | | Phone | ±3.1 |
| Angus Reid Public Opinion | April 5, 2011 | | 38 | 27 | 21 | 8 | 6 | | Online | ±2.2 |
| EKOS Research Associates | April 5, 2011 | | 37.0 | 27.8 | 16.1 | 6.9 | 9.3 | 2.9 | Phone (IVR) | ±3.0 |
| Nanos Research | April 5, 2011 | | 39.7 | 29.9 | 17.4 | 8.3 | 3.8 | | Phone | ±3.1 |
| Nanos Research | April 4, 2011 | | 39.8 | 30.2 | 16.5 | 8.3 | 4.0 | | Phone | ±3.1 |
| Harris-Decima | April 3, 2011 | | 35 | 28 | 17 | 10 | 8 | | Phone | ±3.1 |
| Nanos Research | April 3, 2011 | | 42.3 | 28.4 | 16.4 | 8.0 | 3.8 | | Phone | ±3.1 |
| Leger Marketing | April 2, 2011 | | 37 | 26 | 18 | 10 | 8 | | Online | ±1.7 |
| Nanos Research | April 2, 2011 | | 40.7 | 29.4 | 16.9 | 8.0 | 4.0 | | Phone | ±3.1 |
| Nanos Research | April 1, 2011 | | 41.3 | 30.3 | 16.0 | 8.5 | 3.7 | | Phone | ±3.1 |
| EKOS Research Associates | March 31, 2011 | | 36.9 | 26.2 | 17.2 | 8.5 | 8.7 | 2.5 | Phone (IVR) | ±1.9 |
| Nanos Research | March 31, 2011 | | 39.4 | 31.7 | 16.1 | 8.5 | 4.4 | | Phone | ±3.2 |
| Nanos Research | March 30, 2011 | | 39.1 | 32.7 | 15.9 | 8.7 | 3.7 | | Phone | ±3.2 |
| Nanos Research | March 29, 2011 | | 38.4 | 28.7 | 19.6 | 9.1 | 4.1 | | Phone | ±3.2 |
| Abacus Data | March 28, 2011 | | 36 | 27 | 20 | 9 | 8 | | Online | ±3.2 |
| Harris-Decima | March 27, 2011 | | 38 | 24 | 19 | 10 | 7 | | Phone | ±3.1 |
| Forum Research | March 27, 2011 | | 41 | 24 | 19 | 10 | 6 | | Phone | ±2.2 |

## Pre-campaign period

| Polling firm | Last day of survey | CPC | LPC | NDP | BQ | GPC | ME |
| Angus Reid Public Opinion | March 24, 2011 | 39 | 25 | 19 | 10 | 7 | ±2 pp |
| Leger Marketing | March 24, 2011 | 39 | 23 | 19 | 9 | 7 | ±1.7 pp |
| EKOS Research Associates | March 24, 2011 | 35.3 | 28.1 | 14.2 | 9.7 | 10.6 | ±2.0 pp (c-95%) |
| Ipsos Reid | March 23, 2011 | 43 | 24 | 16 | 10 | 6 | ±3.1 pp (c-95%) |
| Harris-Decima | March 20, 2011 | 34 | 28 | 17 | 10 | 9 | ±2.2 pp (c-95%) |
| EKOS Research Associates | March 16, 2011 | 34.1 | 25.7 | 16.4 | 10.2 | 10.4 | ±2.8 pp |
| Nanos Research | March 15, 2011 | 38.6 | 27.6 | 19.9 | 10.1 | 3.8 | ±3.2 pp |
| Leger Marketing | March 10, 2011 | 36 | 23 | 18 | 10 | 10 | ±2.1 pp |
| Ipsos Reid | March 9, 2011 | 40 | 27 | 16 | 11 | 5 | ±3.1 pp (c-95%) |
| Angus Reid Public Opinion | March 9, 2011 | 39 | 23 | 17 | 9 | 9 | ±3.1 pp |
| EKOS Research Associates | March 8, 2011 | 35.2 | 27.8 | 14.9 | 8.8 | 10.1 | ±2.0 pp |
| Harris-Decima | February 27, 2011 | 36 | 28 | 15 | 9 | 9 | ±2.2 pp (c-95%) |
| Ipsos Reid | February 27, 2011 | 43 | 27 | 13 | 10 | 5 | ±3.1 pp (c-95%) |
| Abacus Data | February 23, 2011 | 38 | 23 | 19 | 11 | 8 | ±3.1 pp (c-95%) |
| EKOS Research Associates | February 22, 2011 | 32.4 | 27.3 | 14.8 | 10.5 | 11.9 | ±2.0 pp |
| Angus Reid Public Opinion | February 18, 2011 | 39 | 26 | 18 | 9 | 6 | ±1.2 pp |
| Nanos Research | February 14, 2011 | 39.7 | 26.6 | 18.9 | 9.9 | 4.9 | ±3.4 pp |
| Harris-Decima | February 13, 2011 | 37 | 27 | 14 | 10 | 10 | ±3.1 pp (c=95%) |
| Ipsos Reid | February 10, 2011 | 39 | 25 | 18 | 9 | 10 | ±3.1 pp |
| EKOS Research Associates | February 9, 2011 | 37.3 | 24.8 | 14.2 | 9.9 | 10.7 | ±2.4 pp |
| Ipsos Reid | February 2, 2011 | 34 | 29 | 16 | 11 | 10 | ±3.1 pp |
| EKOS Research Associates | January 26, 2011 | 35.4 | 27.9 | 14.8 | 9.7 | 9.8 | ±1.4 pp (c=95%) |
| Abacus Data | January 24, 2011 | 35 | 27 | 18 | 10 | 9 | ±3.0 pp (c=95%) |
| Pollara | January 24, 2011 | 35 | 28 | 19 | 10 | 8 | not stated |
| Harris-Decima | January 16, 2011 | 36 | 28 | 15 | 9 | 9 | ±2.2 pp (c=95%) |
| EKOS Research Associates | January 12, 2011 | 34.5 | 27.3 | 14.8 | 9.8 | 10.3 | ±1.7 pp (c=95%) |
| Angus Reid Public Opinion | January 9, 2011 | 34 | 28 | 17 | 11 | 8 | ±3.1 pp |
| EKOS Research Associates | December 15, 2010 | 32.0 | 26.5 | 17.1 | 10.6 | 10.9 | ±2.0 pp (c=95%) |
| Harris-Decima | December 13, 2010 | 31 | 29 | 15 | 9 | 11 | ±2.2 pp (c=95%) |
| Ipsos Reid | December 9, 2010 | 39 | 29 | 12 | 10 | 9 | ±3.1 pp |
| Angus Reid Public Opinion | December 7, 2010 | 38 | 26 | 18 | 10 | 7 | ±3.1 pp |
| EKOS Research Associates | December 7, 2010 | 33.7 | 29.2 | 14.4 | 9.8 | 10.4 | ±2.7 pp (c=95%) |
| Abacus Data | December 6, 2010 | 35 | 24 | 20 | 10 | 10 | ±3.1 pp (c=95%) |
| Nanos Research | December 5, 2010 | 38.1 | 31.2 | 17.2 | 10.2 | 3.2 | ±3.6 pp (c=95%) |
| EKOS Research Associates | November 30, 2010 | 32.6 | 27.4 | 15.8 | 9.9 | 10.9 | ±2.2 pp (c=95%) |
| EKOS Research Associates | November 23, 2010 | 33.3 | 27.1 | 16.6 | 9.5 | 9.5 | ±2.2 pp (c=95%) |
| EKOS Research Associates | November 16, 2010 | 32.4 | 28.7 | 16.3 | 9.9 | 9.8 | ±2.5 pp (c=95%) |
| EKOS Research Associates | November 9, 2010 | 29.4 | 28.6 | 19.3 | 9.3 | 10.7 | ±2.3 pp (c=95%) |
| Nanos Research | November 5, 2010 | 37.1 | 31.6 | 15.4 | 10.8 | 5.2 | ±3.4 pp (c=95%) |
| Ipsos Reid | November 4, 2010 | 35 | 29 | 16 | 8 | 11 | ±3.1 pp (c=95%) |
| Abacus Data | November 1, 2010 | 33 | 25 | 21 | 10 | 10 | ±3.1 pp (c=95%) |
| Harris-Decima | October 31, 2010 | 33 | 28 | 17 | 9 | 10 | ±2.2 pp (c=95%) |
| Angus Reid Public Opinion | October 26, 2010 | 37 | 26 | 19 | 10 | 6 | ±3.1 pp (c=95%) |
| EKOS Research Associates | October 26, 2010 | 33.9 | 27.8 | 15.1 | 9.3 | 11.6 | ±3.0 pp (c=95%) |
| EKOS Research Associates | October 19, 2010 | 30.9 | 29.4 | 13.9 | 11.2 | 11.6 | ±2.5 pp (c=95%) |
| Harris-Decima | October 17, 2010 | 32 | 30 | 14 | 10 | 10 | ±2.2 pp (c=95%) |
| EKOS Research Associates | October 12, 2010 | 34.4 | 27.8 | 15.8 | 9.3 | 10.4 | ±2.5 pp (c=95%) |
| Nanos Research | October 6, 2010 | 36.6 | 32.4 | 16.3 | 9.8 | 4.9 | ±3.4 pp (c=95%) |
| EKOS Research Associates | October 5, 2010 | 31.8 | 27.6 | 16.5 | 9.7 | 11.2 | ±2.0 pp (c=95%) |
| Angus Reid Public Opinion | September 28, 2010 | 34 | 26 | 18 | 10 | 11 | ±3.1 pp (c=95%) |
| EKOS Research Associates | September 28, 2010 | 33.1 | 29.9 | 13.5 | 10.1 | 10.9 | ±2.3 pp (c=95%) |
| Ipsos Reid | September 23, 2010 | 35 | 29 | 12 | 11 | 12 | ±3.1 pp (c=95%) |
| EKOS Research Associates | September 21, 2010 | 31.7 | 29.3 | 14.6 | 9.7 | 11.8 | ±2.5 pp (c=95%) |
| Harris-Decima | September 19, 2010 | 33 | 30 | 14 | 10 | 11 | ±2.2 pp (c=95%) |
| EKOS Research Associates | September 14, 2010 | 32.4 | 28.9 | 16.6 | 8.9 | 10.7 | ±2.3 pp (c=95%) |
| Ipsos Reid | September 12, 2010 | 34 | 31 | 16 | 10 | 9 | ±3.1 pp (c=95%) |
| Environics | September 10, 2010 | 35 | 31 | 16 | 9 | 7 | ±2.3 pp (c=95%) |
| EKOS Research Associates | September 7, 2010 | 32.1 | 28.5 | 15.2 | 9.5 | 12.5 | ±2.3 pp (c=95%) |
| Nanos Research | September 3, 2010 | 33.3 | 32.8 | 15.6 | 12.1 | 6.2 | ±3.4 pp (c=95%) |
| EKOS Research Associates | August 31, 2010 | 29.4 | 29.1 | 15.7 | 10.9 | 13 | ±2.7 pp (c=95%) |
| EKOS Research Associates | August 24, 2010 | 31.1 | 27.6 | 16.9 | 11.2 | 10.7 | ±2.5 pp (c=95%) |
| Harris-Decima | August 22, 2010 | 33 | 30 | 16 | 9 | 10 | ±2.2 pp (c=95%) |
| EKOS Research Associates | August 17, 2010 | 32.5 | 27.9 | 17.4 | 9.2 | 10.3 | ±1.8 pp (c=95%) |
| Angus Reid Public Opinion | August 11, 2010 | 33 | 29 | 19 | 10 | 9 | ±3.1 pp (c=95%) |
| EKOS Research Associates | August 10, 2010 | 32.2 | 27.7 | 15.4 | 9.5 | 12.3 | ±2.1 pp (c=95%) |
| Ipsos Reid | August 9, 2010 | 34 | 31 | 15 | 9 | 9 | payment required |
| Harris-Decima | August 9, 2010 | 34 | 28 | 15 | 9 | 12 | ±2.2 pp (c=95%) |
| Leger Marketing | August 4, 2010 | 37 | 28 | 16 | 9 | 8 | ±2.5 pp (c=95%) |
| EKOS Research Associates | August 3, 2010 | 29.7 | 28.5 | 17.4 | 10.4 | 11.1 | ±2.5 pp (c=95%) |
| EKOS Research Associates | July 27, 2010 | 33.2 | 25.2 | 17.4 | 10.1 | 11.1 | ±2.6 pp (c=95%) |
| Harris-Decima | July 25, 2010 | 31 | 26 | 18 | 10 | 12 | ±2.2 pp (c=95%) |
| EKOS Research Associates | July 20, 2010 | 32.4 | 25.5 | 18.4 | 10.0 | 10.1 | ±3.1 pp (c=95%) |
| EKOS Research Associates | July 13, 2010 | 31.6 | 27.5 | 14.7 | 10.1 | 13.3 | ±2.6 pp (c=95%) |
| Angus Reid Public Opinion | July 8, 2010 | 36 | 27 | 20 | 10 | 7 | ±2.2 pp (c=95%) |
| Ipsos Reid | July 8, 2010 | 35 | 29 | 15 | 11 | 10 | payment required |
| Environics | July 8, 2010 | 35 | 32 | 15 | 9 | 6 | ±2.2 pp (c=95%) |
| EKOS Research Associates | July 6, 2010 | 32.1 | 25.8 | 17.5 | 9.7 | 12.2 | ±1.7 pp (c=95%) |
| EKOS Research Associates | June 21, 2010 | 31 | 27.7 | 16.5 | 9.3 | 13 | ±2.4 pp (c=95%) |
| Harris-Decima | June 20, 2010 | 34 | 27 | 17 | 11 | 10 | ±2.2 pp (c=95%) |
| EKOS Research Associates | June 15, 2010 | 30.5 | 26.3 | 17.4 | 10.5 | 12.3 | ±2.4 pp (c=95%) |
| Ipsos Reid | June 10, 2010 | 35 | 27 | 16 | 10 | 11 | ±3.1 pp |
| EKOS Research Associates | June 8, 2010 | 31.4 | 26.8 | 16.6 | 8.9 | 12.6 | 2.3 |
| Nanos Research | June 3, 2010 | 35.6 | 29.2 | 20.7 | 9.4 | 5.1 | 3.6 |
| EKOS Research Associates | June 1, 2010 | 31.7 | 26.2 | 17.4 | 10.3 | 11.5 | 2.0 |
| Leger Marketing | May 27, 2010 | 37 | 25 | 17 | 11 | 8 | 2.7 |
| Angus Reid Public Opinion | May 27, 2010 | 35 | 27 | 19 | 9 | 8 | 2.2 |
| Environics | May 26, 2010 | 36 | 30 | 15 | 10 | 7 | 2.2 |
| EKOS Research Associates | May 25, 2010 | 33.9 | 25.7 | 16.4 | 9.4 | 11.9 | 2.1 |
| Harris-Decima | May 23, 2010 | 36 | 27 | 16 | 8 | 11 | 2.2 |
| EKOS Research Associates | May 18, 2010 | 34.4 | 25.1 | 15.3 | 10.6 | 12 | 1.9 |
| Harris-Decima | May 16, 2010 | 32 | 28 | 17 | 10 | 11 | 2.2 |
| EKOS Research Associates | May 11, 2010 | 33.6 | 27.1 | 16.9 | 9.3 | 10.6 | 1.9 |
| Ipsos Reid | May 6, 2010 | 35 | 29 | 16 | 10 | 9 | payment required |
| EKOS Research Associates | May 4, 2010 | 33.1 | 26.1 | 16 | 10.2 | 11.5 | 2.1 |
| Nanos Research | May 3, 2010 | 37.2 | 33.2 | 16.2 | 9.6 | 3.8 | 3.1 |
| Angus Reid Public Opinion | April 29, 2010 | 35 | 28 | 19 | 11 | 7 | 3.1 |
| Leger Marketing | April 29, 2010 | 36 | 25 | 20 | 9 | 8 | 2.5 |
| EKOS Research Associates | April 27, 2010 | 31.9 | 26.6 | 17.6 | 9.7 | 10.9 | 2.2 |
| Harris-Decima | April 25, 2010 | 29 | 27 | 20 | 11 | 12 | 2.2 |
| Ipsos Reid | April 22, 2010 | 35 | 29 | 16 | 9 | 10 | payment required |
| EKOS Research Associates | April 20, 2010 | 31.7 | 27.1 | 16.3 | 9.5 | 12.6 | 2.3 |
| EKOS Research Associates | April 13, 2010 | 31.4 | 29 | 16.4 | 8.8 | 11.1 | 2.7 |
| Ipsos Reid | April 8, 2010 | 37 | 27 | 15 | 10 | 10 | 3.1 |
| EKOS Research Associates | April 6, 2010 | 33.6 | 27.3 | 15.9 | 9.6 | 11.7 | 3.3 |
| Harris-Decima | April 5, 2010 | 32 | 29 | 17 | 9 | 11 |
| EKOS Research Associates | March 30, 2010 | 32.2 | 27 | 16 | 9 | 12.7 | 2.1 |
| Angus Reid Public Opinion | March 26, 2010 | 35 | 29 | 20 | 9 | 7 | 3.1 |
| EKOS Research Associates | March 23, 2010 | 33.3 | 27.7 | 15.9 | 9.8 | 10.4 | 1.8 |
| Ipsos Reid | March 18, 2010 | 34 | 28 | 18 | 9 | 10 |
| EKOS Research Associates | March 16, 2010 | 33.1 | 28.9 | 15.7 | 9.2 | 10.8 | 2.0 |
| Nanos Research | March 11, 2010 | 34.7 | 34.6 | 17.8 | 7.7 | 5.2 | 3.5 |
| EKOS Research Associates | March 9, 2010 | 31.9 | 29.6 | 16 | 9.1 | 11 | 2.0 |
| Harris-Decima | March 7, 2010 | 33 | 29 | 16 | 10 | 11 | |
| EKOS Research Associates | March 2, 2010 | 32.4 | 29.4 | 15.2 | 9.4 | 10.5 | 1.9 |
| Harris-Decima | February 28, 2010 | 31 | 31 | 16 | 8 | 12 | 2.2 |
| Angus Reid Public Opinion | February 26, 2010 | 33 | 29 | 20 | 9 | 9 | 3.1 |
| Environics | February 24, 2010 | 31 | 30 | 16 | 9 | 13 | 3.1 |
| EKOS Research Associates | February 23, 2010 | 33.4 | 30.3 | 15.8 | 8.2 | 10.4 | 1.8 |
| Ipsos Reid | February 22, 2010 | 37 | 29 | 16 | 9 | 7 |
| EKOS Research Associates | February 16, 2010 | 31.2 | 29.0 | 16.5 | 8.8 | 11.8 | 1.6 |
| Harris-Decima | February 14, 2010 | 32 | 30 | 16 | 10 | 10 |
| Angus Reid Public Opinion | February 13, 2010 | 34 | 30 | 18 | 9 | 8 | 2.2 |
| Environics | February 9, 2010 | 33 | 37 | 13 | 8 | 9 | 3.2 |
| EKOS Research Associates | February 9, 2010 | 31.0 | 29.0 | 15.5 | 10.3 | 11.3 | 1.8 |
| Nanos Research | February 4, 2010 | 35.6 | 33.9 | 16.4 | 8.5 | 5.6 | 3.5 |
| EKOS Research Associates | February 2, 2010 | 31.0 | 31.9 | 15.4 | 8.4 | 10.9 | 1.68 |
| Harris-Decima | January 31, 2010 | 32 | 32 | 15 | 10 | 9 |
| Angus Reid Public Opinion | January 26, 2010 | 33 | 29 | 19 | 10 | 7 | 3.1 |
| EKOS Research Associates | January 26, 2010 | 31.1 | 31.6 | 14.6 | 9.1 | 11 | 1.7 |
| Harris-Decima | January 24, 2010 | 32 | 31 | 15 | 10 | 10 | 3.1 |
| Ipsos Reid | January 21, 2010 | 34 | 31 | 17 | 9 | 8 |
| EKOS Research Associates | January 19, 2010 | 31.5 | 30.9 | 14.9 | 9.1 | 11.5 | 1.8 |
| Angus Reid Public Opinion | January 13, 2010 | 34 | 28 | 19 | 9 | 8 | 3.0 |
| EKOS Research Associates | January 12, 2010 | 30.9 | 29.3 | 15.3 | 10.2 | 11.9 | 1.6 |
| Harris-Decima | January 10, 2010 | 34 | 30 | 16 | 9 | 9 |
| Strategic Counsel | January 8, 2010 | 31 | 30 | 18 | 9 | 10 |
| Angus Reid Public Opinion | January 6, 2010 | 36 | 29 | 17 | 10 | 8 |
| EKOS Research Associates | January 5, 2010 | 33.1 | 27.8 | 16.0 | 9.8 | 13.4 |
| EKOS Research Associates | December 15, 2009 | 35.9 | 26.7 | 17.0 | 9.2 | 11.2 |
| Nanos Research | December 13, 2009 | 39.5 | 30.2 | 18.7 | 7.7 | 4 |
| Angus Reid Public Opinion | December 10, 2009 | 36 | 29 | 16 | 11 | 6 |
| EKOS Research Associates | December 8, 2009 | 35.6 | 26.5 | 16.7 | 9.9 | 11.3 |
| EKOS Research Associates | November 24, 2009 | 36.9 | 27.1 | 15.3 | 9.4 | 11.4 |
| Ipsos Reid | November 19, 2009 | 37 | 24 | 19 | 9 | 10 |
| Angus Reid Public Opinion | November 16, 2009 | 38 | 23 | 17 | 11 | 10 |
| Nanos Research | November 10, 2009 | 38 | 28.8 | 17.9 | 9.3 | 5.9 |
| EKOS Research Associates | November 10, 2009 | 36.6 | 26.6 | 16.8 | 8.8 | 11.2 |
| EKOS Research Associates | November 3, 2009 | 37.4 | 26.8 | 16.3 | 9.4 | 10.0 |
| EKOS Research Associates | October 27, 2009 | 38.4 | 26.8 | 16.7 | 8.2 | 9.9 |
| Angus Reid Strategies | October 24, 2009 | 40 | 26 | 17 | 9 | 7 |
| Ipsos Reid | October 22, 2009 | 40 | 25 | 13 | 11 | 11 |
| Environics | October 21, 2009 | 38 | 26 | 16 | 8 | 10 |
| EKOS Research Associates | October 20, 2009 | 38.3 | 27.1 | 14.5 | 9.0 | 11.0 |
| Nanos Research | October 18, 2009 | 39.8 | 30 | 16.6 | 8.9 | 4.6 |
| Angus Reid Strategies | October 14, 2009 | 41 | 27 | 16 | 8 | 6 |
| EKOS Research Associates | October 13, 2009 | 40.7 | 25.5 | 14.3 | 9.1 | 10.5 |
| Harris-Decima | October 12, 2009 | 35 | 28 | 15 | 10 | 10 |
| Ipsos Reid | October 8, 2009 | 39 | 29 | 13 | 10 | 8 |
| EKOS Research Associates | October 6, 2009 | 39.7 | 25.7 | 15.2 | 9.7 | 9.7 |
| Strategic Counsel | October 4, 2009 | 41 | 28 | 14 | 9 | 9 |
| Angus Reid Strategies | September 30, 2009 | 37 | 27 | 17 | 11 | 6 |
| EKOS Research Associates | September 29, 2009 | 36.0 | 29.7 | 13.9 | 9.8 | 10.5 |
| Angus Reid Strategies | September 24, 2009 | 37 | 29 | 16 | 9 | 8 |
| EKOS Research Associates | September 22, 2009 | 37.0 | 29.9 | 13.8 | 9.1 | 10.2 |
| EKOS Research Associates | September 15, 2009 | 35.1 | 29.9 | 16.5 | 9.6 | 9.0 |
| Angus Reid Strategies | September 13, 2009 | 36 | 29 | 17 | 10 | 7 |
| Harris-Decima | September 13, 2009 | 34 | 30 | 15 | 9 | 10 |
| Ipsos Reid | September 13, 2009 | 39 | 30 | 12 | 9 | 8 |
| EKOS Research Associates | September 8, 2009 | 34.2 | 30.8 | 14.8 | 10 | 10.1 |
| Harris-Decima | September 6, 2009 | 34 | 31 | 15 | 8 | 10 |
| Strategic Counsel | September 6, 2009 | 35 | 30 | 14 | 12 | 9 |
| Nanos Research | September 2, 2009 | 37.5 | 33.4 | 14.8 | 9.7 | 4.6 |
| Angus Reid Strategies | September 2, 2009 | 33 | 32 | 19 | 9 | 7 |
| EKOS Research Associates | September 1, 2009 | 32.6 | 32.6 | 16.5 | 8.3 | 9.9 |
| Pollara | September 1, 2009 | 36 | 36 | 16 | 8 | 3 |
| Angus Reid Strategies | August 26, 2009 | 34 | 30 | 18 | 8 | 9 |
| EKOS Research Associates | August 25, 2009 | 32.6 | 30.9 | 15.7 | 9.5 | 11.3 |
| Harris-Decima | August 24, 2009 | 31 | 32 | 16 | 9 | 11 |
| Ipsos Reid | August 24, 2009 | 39 | 28 | 14 | 8 | 10 |
| EKOS Research Associates | August 18, 2009 | 32.0 | 30.2 | 17.3 | 8.7 | 11.0 |
| EKOS Research Associates | August 11, 2009 | 32.7 | 31.0 | 16.5 | 9.0 | 10.1 |
| EKOS Research Associates | August 4, 2009 | 34.9 | 31.9 | 13.8 | 8.6 | 10.8 |
| Nanos Research | August 2, 2009 | 31.3 | 33.8 | 18.7 | 9.2 | 7.0 |
| Angus Reid Strategies | July 28, 2009 | 33 | 34 | 16 | 10 | 7 |
| EKOS Research Associates | July 28, 2009 | 32.5 | 34.1 | 14.5 | 8.6 | 10.4 |
| EKOS Research Associates | July 21, 2009 | 32.8 | 32.5 | 14.8 | 8.4 | 11.5 |
| Angus Reid Strategies | July 17, 2009 | 33 | 30 | 18 | 11 | 6 |
| EKOS Research Associates | July 14, 2009 | 34.1 | 32.4 | 15.2 | 8.7 | 9.6 |
| EKOS Research Associates | July 7, 2009 | 31.8 | 32.2 | 16.0 | 9.3 | 10.7 |
| Angus Reid Strategies | July 3, 2009 | 36 | 30 | 16 | 10 | 7 |
| EKOS Research Associates | June 29, 2009 | 31.0 | 32.2 | 16.2 | 9.0 | 11.5 |
| EKOS Research Associates | June 23, 2009 | 34.8 | 32.6 | 14.3 | 9.0 | 9.3 |
| Nanos Research | June 21, 2009 | 32.2 | 36.3 | 16.8 | 9.8 | 4.8 |
| Angus Reid Strategies | June 18, 2009 | 32 | 31 | 18 | 11 | 7 |
| EKOS Research Associates | June 16, 2009 | 32.4 | 33.7 | 16.3 | 8.4 | 9.0 |
| EKOS Research Associates | June 9, 2009 | 30.3 | 35.0 | 15.1 | 9.2 | 10.4 |
| Harris-Decima | June 8, 2009 | 31 | 35 | 15 | 9 | 8 |
| Strategic Counsel | June 7, 2009 | 30 | 34 | 16 | 9 | 11 |
| Ipsos Reid | June 4, 2009 | 33 | 36 | 12 | 9 | 9 |
| Nanos Research | June 1, 2009 | 31.8 | 37.2 | 15.7 | 8.0 | 7.4 |
| Angus Reid Strategies | May 29, 2009 | 31 | 33 | 17 | 9 | 7 |
| EKOS Research Associates | May 28, 2009 | 32.3 | 33.5 | 15.1 | 8.7 | 10.4 |
| Ipsos Reid | May 24, 2009 | 35 | 33 | 14 | 9 | 8 |
| Strategic Counsel | May 10, 2009 | 30 | 35 | 16 | 9 | 11 |
| Harris-Decima | May 3, 2009 | 29 | 34 | 15 | 9 | 11 |
| Nanos Research | April 30, 2009 | 33 | 36 | 15 | 9 | 7 |
| Ipsos Reid | April 30, 2009 | 33 | 36 | 13 | 9 | 8 |
| Angus Reid Strategies | April 22, 2009 | 33 | 33 | 15 | 10 | 6 |
| Harris-Decima | April 19, 2009 | 29 | 32 | 16 | 9 | 11 |
| EKOS Research Associates | April 13, 2009 | 30.2 | 36.7 | 15.5 | 9.4 | 8.1 |
| Strategic Counsel | April 5, 2009 | 32 | 34 | 15 | 10 | 9 |
| Leger Marketing | March 23, 2009 | 34 | 35 | 14 | 9 | 6 |
| Nanos Research | March 18, 2009 | 33 | 36 | 13 | 10 | 8 |
| Angus Reid Strategies | March 11, 2009 | 35 | 31 | 16 | 10 | 7 |
| Harris-Decima | March 8, 2009 | 32 | 33 | 14 | 9 | 10 |
| Strategic Counsel | March 8, 2009 | 35 | 31 | 16 | 9 | 10 |
| Ipsos Reid | March 5, 2009 | 37 | 33 | 12 | 10 | 8 |
| Harris-Decima | February 15, 2009 | 33 | 33 | 15 | 10 | 7 |
| Strategic Counsel | February 8, 2009 | 32 | 33 | 17 | 5 | 13 |
| Harris-Decima | February 8, 2009 | 33 | 31 | 15 | 10 | 10 |
| Ipsos Reid | February 7, 2009 | 37 | 31 | 14 | 10 | 7 |
| Nanos Research | February 3, 2009 | 34 | 33 | 16 | 10 | 7 |
| Angus Reid Strategies | January 27, 2009 | 38 | 29 | 18 | 8 | 6 |
| EKOS Research Associates | January 17, 2009 | 36.2 | 32.6 | 14.3 | 7.9 | 9.1 |
| Angus Reid Strategies | January 15, 2009 | 39 | 30 | 17 | 9 | 5 |
| Strategic Counsel | January 14, 2009 | 36 | 29 | 18 | 8 | 8 |
| Ipsos Reid | January 8, 2009 | 39 | 28 | 15 | 9 | 9 |
| Nanos Research | January 7, 2009 | 33 | 34 | 19 | 7 | 7 |
| COMPAS | December 23, 2008 | 43 | 30 | 13 | 6 | 8 |
| Angus Reid Strategies | December 12, 2008 | 37 | 31 | 15 | 9 | 8 |
| Ipsos Reid | December 11, 2008 | 45 | 26 | 12 | 10 | 7 |
| Angus Reid Strategies | December 6, 2008 | 42 | 22 | 18 | 10 | 7 |
| Praxicus Public Strategies | December 4, 2008 | 47 | 24 | 14 | 8 | 8 |
| COMPAS | December 4, 2008 | 51 | 20 | 10 | 8 | 6 |
| EKOS Research Associates | December 4, 2008 | 42.2 | 23.6 | 15.0 | 10.2 | 9.0 |
| Strategic Counsel | December 3, 2008 | 45 | 24 | 14 | 10 | 8 |
| Ipsos Reid | December 3, 2008 | 46 | 23 | 13 | 9 | 8 |
| EKOS Research Associates | December 3, 2008 | 44.0 | 24.1 | 14.5 | 9.2 | 8.1 |
| Nanos Research | November 15, 2008 | 32 | 30 | 20 | 9 | 10 |
| Election 2008 | October 14, 2008 | 37.6 | 26.2 | 18.2 | 10.0 | 6.8 |

## Leadership polls

Aside from conducting the usual opinion surveys on general party preferences, polling firms also survey public opinion on who would make the best prime minister:
| Polling firm | Last day of survey | Stephen Harper | Michael Ignatieff | Jack Layton | Gilles Duceppe | Elizabeth May |
| Angus Reid Public Opinion | April 29, 2011 | 31 | 11 | 29 | 3 | 1 |
| Ipsos Reid | April 28, 2011 | 42 | 13 | 45 | - | - |
| Angus Reid Public Opinion | April 16, 2011 | 28 | 13 | 27 | 3 | 3 |
| Angus Reid Public Opinion | April 5, 2011 | 30 | 14 | 21 | 3 | 3 |
| Ipsos Reid | March 26, 2011 | 49 | 17 | 34 | - | - |