| Election Name: | Kansas City mayoral election, 2003 |
| Country: | Missouri |
| Flag Image: | Flag of Kansas City, Missouri (1995–2023).svg |
| Type: | presidential |
| Ongoing: | no |
| Previous Election: | 1999 Kansas City mayoral election |
| Previous Year: | 1999 |
| Next Election: | 2007 Kansas City mayoral election |
| Next Year: | 2007 |
| Election Date: | February 25, 2003 (primary) March 31, 2003 (general) |
| Turnout: | 9.62% (primary) 18.51% (general) |
| Candidate1: | Kay Barnes |
| Party1: | nonpartisan candidate |
| Popular Vote1: | 22,990 |
| Percentage1: | 59.59% |
| Candidate2: | Stanford P. Glazer |
| Party2: | nonpartisan candidate |
| Popular Vote2: | 15,589 |
| Percentage2: | 40.41% |
| Mayor | |
| Before Election: | Kay Barnes |
| Before Party: | Democratic Party (United States) |
| After Election: | Kay Barnes |
| After Party: | Democratic Party (United States) |
The 2003 Kansas City mayoral election was held February 25 and March 31, 2003 to elect the mayor of Kansas City, Missouri. It saw the reelection of incumbent mayor Kay Barnes.