2009 New York City Comptroller election

2009 New York City comptroller election
	November 3, 2009
	Liu: 50–60% 60–70% 70–80% 80–90% >90%; Mendola: 40–50% 50–60%
Comptroller before election; Bill Thompson; Democratic	Elected Comptroller ; John C. Liu; Democratic

The 2009 election for New York City Comptroller was held on November 3, 2009, to coincide with the 2009 mayoral election to determine who would serve as New York City Comptroller. The Democratic and Republican primaries were held on September 15, 2009. There was a run-off election for the Democratic Party nomination on September 29, 2009.

Joe Mendola was nominated as the Republican candidate. John Liu was nominated as the candidate of the Democratic Party; he was also on the Working Families Party line in November. Liu won the race and was elected Comptroller, becoming the first Asian American to be elected to a citywide office.