| Election Name: | 1971 Porirua mayoral election |
| Country: | New Zealand |
| Flag Image: | File:Porirua CoA shield+crest.svg |
| Type: | Presidential |
| Ongoing: | no |
| Previous Election: | 1968 Porirua mayoral election |
| Previous Year: | 1968 |
| Next Election: | 1974 Porirua mayoral election |
| Next Year: | 1974 |
| Election Date: | 9 October 1971 |
| Turnout: | 4,344 |
| Candidate1: | Whitford Brown |
| Party1: | Independent politician |
| Popular Vote1: | 3,426 |
| Percentage1: | 78.86 |
| Candidate2: | Bill Arnold |
| Party2: | Independent politician |
| Popular Vote2: | 820 |
| Percentage2: | 18.87 |
| Mayor | |
| Before Election: | Whitford Brown |
| After Election: | Whitford Brown |
The 1971 Porirua mayoral election was part of the New Zealand local elections held that same year. The elections were held for the role of Mayor of Porirua plus other local government positions including twelve city councillors, also elected triennially. The polling was conducted using the standard first-past-the-post electoral method.
The incumbent Mayor, Whitford Brown, sought re-election for a fourth term. He was opposed by councillor Bill Arnold. Brown was re-elected in a landslide result.[1] Although polling poorly for the mayoralty, Arnold was re-elected comfortably for the city council.[2]