| Election Name: | 1903 Invercargill mayoral election |
| Type: | Presidential |
| Ongoing: | no |
| Previous Election: | 1902 Invercargill mayoral election |
| Previous Year: | 1902 |
| Next Election: | 1904 Invercargill mayoral election |
| Next Year: | 1904 |
| Election Date: | 29 April 1903 |
| Turnout: | 1,215 |
| Candidate1: | George Froggatt |
| Party1: | Independent politician |
| Popular Vote1: | 618 |
| Percentage1: | 50.86 |
| Candidate2: | Charles Stephen Longuet |
| Party2: | Independent politician |
| Popular Vote2: | 592 |
| Percentage2: | 48.72 |
| Mayor | |
| Before Election: | Charles Stephen Longuet |
| After Election: | George Froggatt |
The 1903 Invercargill mayoral election was held on 29 April 1903 as part of that year's local elections.
Former mayor George Froggatt defeated the incumbent Charles Stephen Longuet.
The following table gives the election results:[1]