Green Party of the United States
- Country: United States
- Type: Organization
- Website: www.gp.org
- Update: 05-02
The Green Party of the United States (abbreviated GPUS; Green Party of the United States) is an American national political party headquartered in Washington, D.C. It is the leading national green organization in the United States, with an emphasis on environmentalism, non-hierarchical democracy, social justice, respect for pluralism, and the promotion of peace and non-violence.