NewLabour was the name chosen by Jim Anderton, an MP and former President of the New Zealand Labour Party, for his new left-of-centre party in 1989.

NewLabour was established in reaction to "Rogernomics", the economic policies implemented by the Labour Party's Minister of Finance, Roger Douglas. Anderton, who had been among the most vocal critics of Douglas, was joined by a number of other members of the Labour Party, such as Matt Robson and Laila Harré. Anderton, however, was the party's only MP.

In the 1990 elections, NewLabour stood candidates in all electorates. The party gained a certain amount of support from disillusioned Labour voters, winning 5.16% of the vote. However, Anderton was NewLabour's only successful candidate, retaining the Sydenham seat in "working-class" south-central Christchurch. He remained the party's sole representative in Parliament, which was now dominated by the National Party with 67 seats out of 97.

In 1991, NewLabour and four other parties formed the Alliance, a broad left-wing coalition. Initially, NewLabour maintained a separate identity within the Alliance, keeping its own party organization intact. Later, however, it was decided to completely assimilate the party into the larger Alliance structure, marking the end of NewLabour.