2009 Houston mayoral election|
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|  |  |  |  
| Candidate | Annise Parker | Gene Locke |  
| First round | 54,193 30.62%
 | 45,954 25.97%
 |  
| Runoff | 81,743 53.60%
 | 70,770 46.40%
 |  
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|  |  |  |  
| Candidate | Peter Brown | Roy Morales |  
| First round | 39,904 22.55%
 | 35,925 20.30%
 |  
| Runoff | Eliminated | Eliminated |  |
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The 2009 Houston mayoral election took place on November 3, 2009, to elect the successor to incumbent Mayor Bill White. White was ineligible for re-election, having served three terms. The race is officially nonpartisan. After no candidate received a majority of the votes, the top two candidates – City Controller Annise Parker and former City Attorney Gene Locke – faced each other in a runoff election on December 12, 2009. On November 11, councilman Peter Brown (who finished third in the first round) publicly endorsed Parker in the Mayor's race. Annise Parker won the run-off.
With the election, Houston became the largest city to elect an openly gay mayor.