United Nations of Luna
联合国的卢纳 (Chinese)
Organisation des Nations unies de Luna (French)
Организации Объединенных Наций из Луна (Russian)
Organización de las Naciones Unidas de la Luna (Spanish)
Official languages Chinese, English, French, Russian, Spanish
Membership All Terrestrial colonies on Luna
 -  Space Colonization Treaty signed 21 May 1990 

The United Nations of Luna (UNOL or, less commonly, UNL) is an international organization on Luna whose stated aims are facilitating cooperation in international law, international security, economic development, social progress, human and lunan rights, and achievement of peace on Luna. The UNOL was founded after the signing of the Space Colonization Treaty that granted the colonization of Luna. Originally, the UNOL was used primarily used to enforce that countries colonizing Luna were maintaining the agreements they had signed. Now, it is used to make sure that no wars are currently being held and to provide a platform for dialogue. It contains multiple subsidiary organizations to carry out its missions.

All colonies and independent countries are members of the UNOL, except for the Lunan Reserve. The UN's most visible public figure is the Secretary-General, currently Ban Ki-moon of South Korea, who attained the post in 2007. The organization is financed from assessed and voluntary contributions from its member states, and has the same six official languages from the United Nations on Earth (except for Arabic): Chinese, English, French, Russian, and Spanish.