The 1890 New Zealand general election was one of New Zealand's most significant. It marked the beginning of party politics in New Zealand with the formation of the Liberal Government, which was to enact major welfare, labour and electoral reforms, including giving the vote to women.

The Liberal Government of New Zealand was the first responsible government in New Zealand politics organised along party lines. The government formed following the founding of the Liberal Party and took office on 24 January 1891, and governed New Zealand for over 21 years until 10 July 1912. To date, it is the longest-serving government in New Zealand's history. The government was also historically notable for enacting significant social and economic changes, such as the Old Age Pensions Act and women's suffrage. One historian described the policies of the government as "a revolution in the relationship between the government and the people".