2023 Port Waikato by-election
| 
 | |||||||||||||||||||
| Port Waikato constituency of the House of Representatives | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Turnout | 18,728 (35.69%) | ||||||||||||||||||
| 
 | |||||||||||||||||||
| Results by polling locationBayly:      <50%      50–60%      60–70%      70–80%      >80% | |||||||||||||||||||
| 
 | |||||||||||||||||||
The 2023 Port Waikato by-election was held on 25 November 2023. The by-election was triggered by the death of Neil Christensen, who was a candidate for the ACT Party. Christensen's death occurred after the close of candidate nominations for the 2023 New Zealand general election, but before polling day. The by-election was won by National incumbent Andrew Bayly, who has held the Port Waikato seat and its predecessor Hunua since 2014.