| Election Name: | 1997 St. Louis mayoral election |
| Flag Image: | Flag of St. Louis, Missouri.svg |
| Previous Election: | 1993 St. Louis mayoral election |
| Previous Year: | 1993 |
| Election Date: | April 1, 1997 |
| Next Election: | 2001 St. Louis mayoral election |
| Next Year: | 2001 |
| Turnout: | 18.75% |
| Candidate1: | Clarence Harmon |
| Party1: | Democratic Party (United States) |
| Popular Vote1: | 53,646 |
| Percentage1: | 72.13% |
| Candidate2: | Marit Clark |
| Party2: | Independent (politician) |
| Popular Vote2: | 17,138 |
| Percentage2: | 23.04% |
| Candidate3: | Jay Dearing |
| Party3: | Republican Party (United States) |
| Popular Vote3: | 3,590 |
| Percentage3: | 4.83% |
| Type: | Mayor |
| Ongoing: | No |
| Map Size: | 200px |
| Mayor | |
| Before Election: | Freeman Bosley Jr. |
| Before Party: | Democratic Party (United States) |
| After Election: | Clarence Harmon |
| After Party: | Democratic Party (United States) |
The 1997 St. Louis mayoral election was held on April 1, 1997[1] to elect the mayor of St. Louis, Missouri. It saw the election of Clarence Harmon and the defeat of incumbent mayor Freeman Bosley Jr. in the Democratic primary.
The election was preceded by party primaries on March 4.[2]