In a by-election you have one vote for the candidate you want to be your local member of Parliament.
This is different from a general election when you have two votes – one for a party and the other for your local candidate.
These are the candidates who stood in the Port Waikato by-election which was held on Saturday 25 November 2023.
| Candidate Name | Party |
| BAYLY, Andrew | National Party |
| BRIGHT, Scotty | DemocracyNZ |
| COSTELLO, Casey | New Zealand First Party |
| DICKSON, Gordon John | Independent |
| NGARO, Alf Metuakore | NewZeal |
| OVENS, Jill Annette | Women’s Rights Party |
| RIPPON, Anna Joy | Animal Justice Party |
| SUDHAMALLA, Vijay | Vision New Zealand |
| TURNER, Kim | New Zealand Loyal |