The 38th New Zealand Parliament was a term of the New Zealand Parliament. It was elected at the 1975 general election on 29 November of that year.

The 1975 general election was held on Saturday, 29 November.^[1] A total of 92 MPs were elected; 63 represented North Island electorates, 25 represented South Island electorates, and the remaining four represented Māori electorates; this was an increase in the number of MPs by five since the 1972 election, and the gain was all for the North Island.^[2] 1,953,050 voters were enrolled and the official turnout at the election was 82.5%.^[1]

The 38th Parliament sat for four sessions (there were two sessions in 1977), and was prorogued on 7 October 1978.^[3]

The Labour Party, which had come to power at the 1972 election, was defeated by the National Party at the 1975 election. Robert Muldoon formed the third National Government and led the Muldoon Ministry until National's defeat at the 1984 election.^[4]

The table below shows the number of MPs in each party following the 1975 election and at dissolution:

Notes

• The Working Government majority is calculated as all Government MPs less all other parties.

The table below shows the results of the 1975 general election:

Key

  National   Labour   Social Credit

Table footnotes:

There were a number of changes during the term of the 38th Parliament.