| Flag Image: | Flag of Columbus, Ohio.svg |
| Country: | Columbus |
| Type: | Mayoral |
| Ongoing: | no |
| Previous Election: | 1903 Columbus, Ohio mayoral election |
| Previous Year: | 1903 |
| Next Election: | 1907 Columbus, Ohio mayoral election |
| Next Year: | 1907 |
| Election Date: | 1905 |
| Image1: | De Witt Clinton Badger.png |
| Candidate1: | De Witt C. Badger |
| Party1: | Democratic Party (United States) |
| Candidate2: | Winfield Scott Potter |
| Party2: | Republican Party (United States) |
| Mayor | |
| Before Election: | Robert H. Jeffrey |
| Before Party: | Republican Party (United States) |
| After Election: | De Witt C. Badger |
| After Party: | Democratic Party (United States) |
The Columbus mayoral election of 1905 was the 55th mayoral election in Columbus, Ohio. Incumbent Republican mayor Robert H. Jeffrey retired from office after one term. Democratic party nominee De Witt C. Badger defeated Republican party nominee Winfield Scott Potter.