Ontario general election, 2011 Opinion polls Opinion polls

| Polling_Firm | Date_of_Polling | Link | Liberal | Green |
|---|---|---|---|---|
| Ipsos Reid | May 17 – June 9, 2011 | HTML | 34 | 6 |
| Nanos Research | May 14–15, 2011 | PDF | 34 | 5 |
| Nanos Research | March 8–11, 2011 | PDF | 35 | 4 |
| Nanos Research | January 31 – February 3, 2011 | PDF | 39 | 5 |
| Ipsos Reid | January 20, 2011 | HTML | 35 | 9 |
| Ipsos Reid | November 18, 2010 | HTML | 32 | 7 |
| Angus Reid | September 28, 2010 | PDF | 29 | 8 |
| Ipsos Reid | August 21, 2010 | HTML | 35 | 11 |
| Ipsos Reid | June 19, 2010 | HTML | 37 | 11 |
| Nanos Research | February 9–10, 2010 | PDF | 41.4 | 7.9 |
| Ipsos Reid | December 13, 2009 | HTML | 38 | 10 |
| Angus Reid | December 4, 2009 | PDF | 27 | 11 |
| Nanos Research | October 24–25, 2009 | PDF | 36.6 | 9.8 |