| Election Name: | 2009 Rochester mayoral election |
| Country: | New York |
| Flag Image: | Flag of Rochester, New York.svg |
| Type: | Presidential |
| Ongoing: | no |
| Previous Election: | 2005 Rochester mayoral election |
| Previous Year: | 2005 |
| Next Election: | 2011 Rochester mayoral special election |
| Next Year: | 2011 (special) |
| Election Date: | November 3, 2009 |
| Candidate1: | Robert Duffy (unopposed) |
| Party1: | Democratic Party (United States) |
| Popular Vote1: | 16,065 |
| Percentage1: | 100% |
| Mayor | |
| Before Election: | Robert Duffy |
| Before Party: | Democratic Party (United States) |
| After Election: | Robert Duffy |
| After Party: | Democratic Party (United States) |
The Rochester Mayoral Election of 2009 took place on November 3, 2009 in the City of Rochester, New York, United States. Democratic Mayor Robert Duffy, first elected in 2005, ran unopposed and was re-elected Mayor, with a low 19.5% turnout.[1] Duffy announced his re-election bid March 21, 2009.[2] No Republican showed serious interest in challenging Duffy.
In November 2010, Duffy was elected Lieutenant Governor of New York.