Template:2023 Port Waikato by-election

The following table shows the final results of the by-election.

2023 Port Waikato by-election
Notes: Blue background denotes the winner of the by-election. Pink background denotes a candidate elected from their party list prior to the by-election. Yellow background denotes the winner of the by-election, who was a list MP prior to the by-election. A Y or N denotes status of any incumbent, win or lose respectively.
Party		Candidate	Votes	%	±%
	National	Y Andrew Bayly	14,296	76.33	+37.48
	NZ First	Casey Costello	2,864	15.30
	NewZeal	Alfred Ngaro	409	2.18	+1.74
	Animal Justice	Anna Rippon	297	1.58
	NZ Loyal	Kim Turner	237	1.27
	DemocracyNZ	Scotty Bright	225	1.20
	Women's Rights	Jill Ovens	188	1.00
	Independent	Gordon Dickson	88	0.47
	Vision NZ	Vijay Sudhamalla	48	0.26
Informal votes			76	0.41	–1.26
Majority			18,728	61.03	+50.35
Turnout			18,728	35.69
	National hold		Swing