The Pahiatua by-election of 1977 was a by-election for the electorate of Pahiatua on 30 April 1977 during the 38th New Zealand Parliament.
The by-election resulted from the resignation of the previous member Sir Keith Holyoake when he was appointed Governor-General.
The Labour Party had seven candidates including:
Levatt, who earned his Ph.D. from Michigan University and had previously lectured in American universities, was selected as the candidate.
Five candidates were shortlisted for the National nomination.
At a selection meeting in the Pahiatua Town Hall four ballots were taken of National members. Kynoch was initially the frontrunner to win the nomination and lead the voting until the final ballot which selected Falloon as the candidate.
The Values Party selected Peter McHugh as its candidate. McHugh, a secondary school from Hastings, had stood as the Values candidate for Pahiatua in .
The following table gives the election results: