| Election Name: | 2018 Tallahassee mayoral election |
| Country: | Florida |
| Flag Image: | Flag of Tallahassee, Florida (2002–2020).svg |
| Type: | presidential |
| Ongoing: | no |
| Turnout: | 32.76% (first round) 38.19% (second round) |
| Previous Election: | 2014 Tallahassee mayoral election |
| Previous Year: | 2014 |
| Election Date: | August 28, 2018 (first round) November 6, 2018 (second round) |
| Next Election: | 2022 Tallahassee mayoral election |
| Next Year: | 2022 |
| 1Blank: | First-round vote |
| 2Blank: | First-round percentage |
| 3Blank: | Second-round vote |
| 4Blank: | Second-round percentage |
| Image1: | File:John E. Dailey (cropped).jpg |
| Nominee1: | John E. Dailey |
| Party1: | Nonpartisan politician |
| 1Data1: | 17,369 |
| 2Data1: | 39.72% |
| 3Data1: | 41,316 |
| 4Data1: | 51.4% |
| Mayor | |
| Before Election: | Andrew Gillum |
| Before Party: | Nonpartisan politician |
| After Election: | John E. Dailey |
| After Party: | Nonpartisan politician |
| Nominee2: | Dustin R. Daniels |
| Party2: | Nonpartisan politician |
| 1Data2: | 11,098 |
| 2Data2: | 25.38% |
| 3Data2: | 39,072 |
| 4Data2: | 48.6% |
| Image4: | File:Michelle Rehwinkel Vasilinda official portrait.jpg |
| Nominee4: | Michelle Rehwinkel Vasilinda |
| Party4: | Nonpartisan politician |
| 1Data4: | 9,137 |
| 2Data4: | 20.89% |
| Nominee5: | Carrie Litherland |
| Party5: | Nonpartisan politician |
| 1Data5: | 2,789 |
| 2Data5: | 6.38% |
The 2018 Tallahassee mayoral election took place on August 28 and November 6, 2018, to elect the Mayor of Tallahassee, Florida.
Incumbent mayor Andrew Gillum decided to focus his campaign on the 2018 Florida gubernatorial election instead of seeking re-election which opened up a new seat for the mayor's office. A blanket primary was held on August 28 with both John E. Dailey and Dustin R. Daniels receiving the most votes.[1] Because neither the candidate received a majority, a run-off election was held on November 8. From there, Dailey defeated Daniels by a close margin of 51% to 49%.[2]