The Green Party of New Brunswick (PVNBGP; French: Parti vert du Nouveau-Brunswick), commonly known as the Greens, is a green provincial political party in New Brunswick, Canada. Formed in 2008, the party has been under the leadership of David Coon since 2012. The party currently holds three seats in the Legislative Assembly of New Brunswick, making it the only minor party in the province currently represented in the legislative assembly.

On November 15, 2008 it held a founding convention in Moncton where the membership adopted a constitution, and a charter of principles to guide the development of policies and platforms. A 12-member Executive Committee was elected.

On September 19, 2009, Jack MacDougall was acclaimed as the first nominated leader of the party. A community and political organizer, MacDougall is best known for his successful campaign to raise the money to purchase and renovate the Imperial Theatre in Saint John. He is a licensed teacher in New Brunswick and stepped down as leader in September 2011. Greta Doucet served as interim leader until the leadership convention in the fall of 2012. David Coon succeeded Doucet as leader.^[4]

In the 2014 provincial election, Coon became the first Green Party candidate to be elected in the Legislative Assembly of New Brunswick. In the 2018 provincial election, the party elected three MLAs. In the 2020 provincial election, those three MLAs were all re-elected.

New Brunswick's Green Party was formed on May 18, 2008, the last province in the Maritimes to do so. Established during a Fredericton meeting, the party seized the opportunity presented by the province's decline in NDP presence, positioning itself as an alternative for such voters.^[5] Upon its formation, it became under elected interim leadership by Mike Milligan.^[6][7]

In the 2014 election, the Greens secured their first ever seat in the Legislative Assembly of New Brunswick and became the second Canadian Green party to win a provincial legislative seat,^[8] with leader David Coon having defeated the incumbent Progressive Conservative Energy Minister Craig Leonard in the Fredericton South riding. Some of Coon's key messages at the time included his opposition to fracking as well as the Energy East pipeline.^[9]

On September 14, 2023, the party announced the appointing of Kevin Arseneau and Megan Mitton as Deputy Leaders by leader Coon.^[10]

On September 22, 2012, a leadership election was held to replace Jack MacDougall. David Coon was chosen after only one ballot.^[14]

• List of Green party leaders in Canada
• List of Green politicians who have held office in Canada
• List of New Brunswick general elections
• List of political parties in New Brunswick
• Politics of New Brunswick