| Election Name: | 1965 Invercargill mayoral election |
| Country: | New Zealand |
| Type: | Presidential |
| Ongoing: | no |
| Previous Election: | 1962 Invercargill mayoral election |
| Previous Year: | 1962 |
| Next Election: | 1968 Invercargill mayoral election |
| Next Year: | 1968 |
| Election Date: | 9 October 1965 |
| Candidate1: | Neil Watson |
| Party1: | Independent politician |
| Popular Vote1: | 6,006 |
| Percentage1: | 61.52 |
| Candidate2: | Clive Faul |
| Party2: | Independent politician |
| Popular Vote2: | 3,756 |
| Percentage2: | 38.47 |
| Mayor | |
| Before Election: | Neil Watson |
| After Election: | Neil Watson |
The 1965 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. Incumbent mayor Neil Watson was re-elected with an increased majority, defeating deputy mayor Clive Faul.
The following table gives the election results:[1]