| Election Name: | 2015 San Francisco mayoral election |
| Country: | San Francisco |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 2011 San Francisco mayoral election |
| Previous Year: | 2011 |
| Next Election: | 2018 San Francisco mayoral special election |
| Next Year: | 2018 (special) |
| Image1: | File:Mayor Ed Lee Headshot Closeup (cropped1).jpg |
| Candidate1: | Ed Lee |
| Popular Vote1: | 105,298 |
| Percentage1: | 55.3% |
| Candidate2: | Francisco Herrera |
| Popular Vote2: | 28,638 |
| Percentage2: | 15.0% |
| Image4: | File:Amy Farah Weiss.png |
| Candidate4: | Amy Farah Weiss |
| Popular Vote4: | 23,099 |
| Percentage4: | 12.1% |
| Image5: | File:Stuart Schuffman.png |
| Candidate5: | Stuart Schuffman |
| Popular Vote5: | 18,211 |
| Percentage5: | 9.6% |
| Map Size: | 250px |
| Mayor | |
| Before Election: | Ed Lee |
| Before Party: | Democratic Party (United States) |
| After Election: | Ed Lee |
| After Party: | Democratic Party (United States) |
| Color1: | c0c0c0 |
| Color2: | c0c0c0 |
| Color4: | c0c0c0 |
| Color5: | c0c0c0 |
The 2015 San Francisco mayoral election took place on November 3, 2015, to elect the Mayor of San Francisco, California. Incumbent Mayor Ed Lee won re-election to a second term in office.[1] [2] All local elections in California are nonpartisan.
In November 2015, incumbent Mayor Ed Lee declared that he would stand for reelection for a second term as mayor.[3] State Senator Mark Leno had considered running but ultimately decided against it.[4] [5] Former Mayor Art Agnos, City Attorney Dennis Herrera, Public Defender Jeff Adachi and former State Assemblyman Tom Ammiano all also declined to run. Initially, local media speculated that Lee would run for reelection unopposed.[6] Lee was ultimately opposed by five candidates: Kent Graham, Francisco Herrera, Reed Martin, Stuart Schuffman, and Amy Farah Weiss.
Municipal elections in California are officially non-partisan, though most candidates in San Francisco do receive funding and support from various political parties. Instant-runoff voting, also known as ranked-choice voting, was used in the election. Lee was reelected with a majority of the vote in the first round of votes, and no transferring of votes was required.