A referendum on the length of the term of Parliament was held in New Zealand on 23 September 1967.
Voters were asked whether they approved of extending the term from three to four years.
Prior to the referendum the length of the term of Parliament had changed multiple times since the first general election of 1853.
[4] This referendum was non-binding, so if a majority of voters supported the proposed measures, then Parliament would have had to vote on it.
As the term of Parliament is an entrenched clause in the New Zealand constitution, 75% of MPs would have had to vote for it.