| Election Name: | 2009 Permatang Pasir by-election |
| Country: | Penang |
| Type: | parliamentary |
| Ongoing: | no |
| Previous Election: | 2008 Penang state election |
| Previous Year: | 2008 |
| Next Election: | 2013 Penang state election |
| Next Year: | 2013 |
| Seats For Election: | N11 Permatang Pasir seat in the Penang State Legislative Assembly |
| Election Date: | 25 August 2009 |
| Image1: | PAS |
| Candidate1: | Mohd Salleh Man |
| Party1: | PAS |
| Alliance1: | PR |
| Color1: | 009000 |
| Popular Vote1: | 9,618 |
| Percentage1: | 65.50% |
| Candidate2: | Rohaizat Othman |
| Color2: | 000080 |
| Party2: | UMNO |
| Alliance2: | BN |
| Popular Vote2: | 5,067 |
| Percentage2: | 34.50% |
| Permatang Pasir assemblyman | |
| Before Election: | Mohd Hamdan Abdul Rahman (died) |
| Before Party: | Pakatan Rakyat (PAS) |
| After Election: | Mohd Salleh Man |
| After Party: | Pakatan Rakyat (PAS) |
A by-election was held on 25 August 2009 for the Penang State Legislative Assembly seat of Permatang Pasir.[1] The seat fell vacant after the death of the incumbent assemblyman, Mohd Hamdan Abdul Rahman.[2]
Mohd Salleh Man got 9,618 votes, beating Rohaizat Othman who got 5,067 votes.[3]