| Election Name: | 2003 Denver mayoral election |
| Flag Image: | Flag of Denver, Colorado.svg |
| Type: | Presidential |
| Ongoing: | no |
| Previous Election: | 1999 Denver mayoral election |
| Previous Year: | 1999 |
| Next Election: | 2007 Denver mayoral election |
| Next Year: | 2007 |
| Election Date: | May 6 and June 3, 2003 |
| Turnout: | 46.45% (first round) and 44.59% (runoff) |
| 1Blank: | First-round vote |
| 2Blank: | First-round percentage |
| 3Blank: | Second-round vote |
| 4Blank: | Second-round percentage |
| Nominee1: | John Hickenlooper |
| Party1: | Nonpartisan candidate |
| 1Data1: | 49,185 |
| 2Data1: | 43.33% |
| 3Data1: | 69,526 |
| 4Data1: | 64.58% |
| Nominee2: | Donald Mares |
| Party2: | Nonpartisan candidate |
| 1Data2: | 25,308 |
| 2Data2: | 22.29% |
| 3Data2: | 38,126 |
| 4Data2: | 35.42% |
| Nominee3: | Aristedes Zavaras |
| Party3: | Nonpartisan candidate |
| 1Data3: | 14,145 |
| 2Data3: | 12.46% |
| Nominee4: | Penfield Tate III |
| Party4: | Nonpartisan candidate |
| 1Data4: | 13,450 |
| 2Data4: | 11.85% |
| Nominee5: | Susan Casey |
| Party5: | Nonpartisan candidate |
| 1Data5: | 8,162 |
| 2Data5: | 7.19% |
| Mayor | |
| Before Election: | Wellington Webb |
| Before Party: | Democratic Party (United States) |
| After Election: | John Hickenlooper |
| After Party: | Democratic Party (United States) |
The 2003 Denver mayoral election was held on May 6 and June 3, 2003.
| Candidates | General Election[2] | Run-off Election[3] | ||
|---|---|---|---|---|
| Votes | % | Votes | % | |
| John Hickenlooper | 49,185 | 43.33 | 69,526 | 64.58 |
| Donald J. Mares | 25,308 | 22.29 | 38,126 | 35.42 |
| Aristedes 'Ari' Zavaras | 14,145 | 12.46 | ||
| Penfield Tate III | 13,450 | 11.85 | ||
| Susan Casey | 8,162 | 7.19 | ||
| Elizabeth Schlosser | 1,812 | 1.60 | ||
| Phil Perington | 1,247 | 1.10 | ||
| Write-in | 211 | 0.19 | ||
| Total | 113,520 | 100 | 107,652 | 100 |