The Green Party of Aotearoa New Zealand (Māori: Rōpū Kākāriki o Aotearoa, Niu Tireni), commonly known as the Greens, is a green and left-wing political party in New Zealand. Like many green parties around the world, it has four organisational pillars (ecological wisdom, social justice, grassroots democracy, and nonviolence). The party's ideology combines environmentalism with left-wing and social-democratic economic policies, including well-funded and locally controlled public services within the confines of a steady-state economy. Internationally, it is affiliated with the Global Greens.

The Green Party has two co-leaders, one male and one female. James Shaw has been the male co-leader since 2015, and Marama Davidson has been the female co-leader since 2018. It is the third-equal largest political party in the House of Representatives, with 10 MPs and has agreed to cooperate with the Sixth Labour Government. The Green Party contests many local government elections throughout New Zealand. In 2019, Aaron Hawkins was elected as the Mayor of Dunedin. In Auckland, the Green Party campaigns with the Labour Party, under the City Vision political banner.