| Country: | Tasmania |
| Type: | parliamentary |
| Ongoing: | no |
| Election Date: | 1 August 2009 |
| Vote Type: | First preference |
| Image1: | Vanessa Goodwin.jpg |
| Candidate1: | Vanessa Goodwin |
| Party1: | Liberal Party of Australia |
| Popular Vote1: | 7,812 |
| Percentage1: | 38.55% |
| Swing1: | 38.55pp |
| Candidate2: | Richard James |
| Party2: | Independent politician |
| Popular Vote2: | 2,285 |
| Percentage2: | 11.28% |
| Swing2: | 7.10pp |
| Candidate4: | Wendy Heatley |
| Party4: | Australian Greens |
| Popular Vote4: | 2,604 |
| Percentage4: | 12.85% |
| Swing4: | 0.56pp |
| Candidate5: | Honey Bacon |
| Party5: | Independent politician |
| Popular Vote5: | 2,110 |
| Percentage5: | 10.41% |
| Swing5: | 10.41pp |
| 1Blank: | Three-candidate-preferred |
| 1Data1: | 51.05% |
| 1Data2: | 27.73% |
| 1Data4: | 21.22% |
| 1Data5: | Eliminated |
| MLC | |
| Before Election: | Allison Ritchie |
| Before Party: | Australian Labor Party |
| After Election: | Vanessa Goodwin |
| After Party: | Liberal Party of Australia |
A by-election was held in the Tasmanian Legislative Council division of Pembroke on 1 August 2009.[1] It was triggered by the resignation of sitting member Allison Ritchie.
Ritchie was first elected to the Legislative Council in 2001 at the age of 26, the youngest person ever elected to that chamber. She spent nine and a half weeks as Minister for Planning and Workplace Relations in 2008, but resigned due to ill health.[2] She announced her resignation from parliament amid allegations of nepotism on 20 June 2009.[3]
The writ for the by-election was issued on 30 June 2009; nominations closed on 9 July.[1] The eight candidates were:
|- style="background-color:#E9E9E9"! colspan="6" style="text-align:left;" |After distribution of preferences