| Election Name: | 2017 Buffalo mayoral election |
| Flag Image: | Flag of Buffalo, New York.svg |
| Type: | presidential |
| Ongoing: | no |
| Previous Year: | 2013 |
| Next Year: | 2021 |
| Turnout: | 15.95% |
| Nominee1: | Byron Brown |
| Party1: | Democratic Party (United States) |
| Alliance1: | Working Families Independence Women's Equality |
| Popular Vote1: | 29,688 |
| Percentage1: | 67.67% |
| Mayor | |
| Before Election: | Byron Brown |
| Before Party: | Democratic Party (United States) |
| After Election: | Byron Brown |
| After Party: | Democratic Party (United States) |
| Nominee2: | Mark J. F. Schroeder |
| Party2: | Reform Party of the United States of America |
| Popular Vote2: | 11,446 |
| Percentage2: | 26.09% |
| Map Size: | 200px |
The 2017 Buffalo mayoral election was held on November 7, 2017. Incumbent three-term Democratic mayor Byron Brown won re-election to a fourth term.
The 2017 Buffalo mayoral race was held to elect the mayor of Buffalo, New York. The incumbent, Byron Brown, successfully ran for re-election against city comptroller Mark J. F. Schroeder and Erie County legislator Betty Jean Grant. A primary took place on September 12, 2017. Brown won the primary with Schroeder as the runner up and Grant coming in third. Schroeder won the Reform Party primary and was on that line for the general election.