The 2nd New Zealand Parliament was a term of the Parliament of New Zealand. It opened on 15 April 1856, following New Zealand's 1855 election. It was dissolved on 5 November 1860 in preparation for 1860–61 election. The 2nd Parliament was the first under which New Zealand had responsible government, meaning that unlike previously, the Cabinet was chosen (although not officially appointed) by Parliament rather than by the Governor.
At this time political parties had not been established (they were not established until after the 1890 election), meaning that anyone attempting to form an administration had to win support directly from individual MPs. This made forming (and retaining) a government difficult. The Sewell Ministry, the first responsible government, led by Henry Sewell, lasted only two weeks. The first Fox Ministry, the second responsible government, led by William Fox, also lasted only two weeks. The third responsible government, the first Stafford Ministry, led by Edward Stafford, was more stable, governing for the remainder of the 2nd Parliament and for the beginning of the 3rd.
Parliament sat for three sessions:
The 2nd Parliament, which initially used the same electoral boundaries as the 1st Parliament, consisted of thirty-seven representatives representing twenty-four electorates. Two regions of the colony (the inland regions of the lower North Island and the north-west corner of the South Island) were not part of any electorate, and so were not represented.