| Election Name: | 1947 Invercargill mayoral election |
| Country: | New Zealand |
| Type: | Presidential |
| Ongoing: | no |
| Previous Election: | 1944 Invercargill mayoral election |
| Previous Year: | 1944 |
| Next Election: | 1950 Invercargill mayoral election |
| Next Year: | 1950 |
| Election Date: | 19 November 1947 |
| Turnout: | 10,031 |
| Candidate1: | Abraham Wachner |
| Party1: | Independent politician |
| Popular Vote1: | 5,514 |
| Percentage1: | 54.96 |
| Candidate2: | William Denham |
| Party2: | New Zealand Labour Party |
| Popular Vote2: | 4,517 |
| Percentage2: | 45.04 |
| Mayor | |
| Before Election: | Abraham Wachner |
| After Election: | Abraham Wachner |
The 1947 Invercargill mayoral election was part of the New Zealand local elections held that same year. The polling was conducted using the standard first-past-the-post electoral method.
The incumbent mayor Abraham Wachner sought another term and was re-elected to the position despite a challenge from former Invercargill Borough Councillor and Labour MP William Denham.
The following table gives the election results: