In the Animatrix short film The Second Renaissance, the UN rejects the machine nation Zero-One's applications for membership. The rebuff sets off a war that would later end with the defeat of the humans by the machine army. The UN headquarters is destroyed by a machine ambassador signing an armistice document.
The 1953 Columbia Pictures B-movie The Glass Wall was the first Hollywood movie filmed on location at the New York UN headquarters building.
In the 2016 Marvel Studios film Captain America: Civil War, the United Nations building in Vienna is the site of a bombing, and the United Nations is the organization that approves and writes the Sokovia Accords.
In the television series seaQuest DSV, following the growing colonization of the world's oceans, the world is brought into conflict over underwater territories which eventually leads to the collapse of the United Nations. The United Earth Oceans is formed to take its place.
The Australian series Answered by Fire is about 1999 East Timor conflicts and the United Nations Mission in East Timor.
The British series Warriors is about the British forces part of the United Nations Protection Force during the Yugoslav Wars.
On the animated show Animaniacs, the Warners sing a song about the U.N. to the tune of Down By the Riverside, referencing the building's location on the shore of the East River.
The United Nations exist in the Defiance universe. On May 27, 2015 the United Nations granted land in Brazil to build a Votan colony and on March 8, 2023 the Votan diplomat was killed outside the UN building in New York and led to war. The Earth Republic government established after the war is led by remnants of the United Nations.
In an episode of Family Guy, called "E. Peterbus Unum", Peter Griffin creates his own small nation within the United States. After becoming a member of the United Nations, he asks for a seat at the front because he couldn't hear or see. Kofi Annan and the other member states ridicule him.
In the science fiction series The Expanse, the United Nations is the governing body of a united Earth, competing with the Mars-based MCR over asteroid belt resources.
In Ace Combat 3: Electrosphere, a futuristic version of the UN exists, called the Neo United Nations (NUN), with Gabriel Clarkson as Secretary General.
In Surveillance Kanshisha, the UN establishes a counter-terrorist unit called Shadow Sword in order to safeguard the Earth-Mars space travel route and the people using it from a mysterious terrorist group called Neo-Kleit.
In SimCity 3000, the UN building can be built as a landmark.
The UN was disbanded on July 27, 2052 in the Fallout series. This led to rising international tensions over the coming decades and eventually to a global nuclear war in 2077, destroying civilization across the globe.
United Nations Cosmo Force, a space military branch administrated by the UN in the anime Space Battleship Yamato 2199, in which the Yamato sails as a UNCF. However this affiliation is only in the remake, and there is no mention of the UN in the original run of Space Battleship Yamato.
U.N. Spacy, a fictional military arm of the Earth U.N. Government (地球統合政府 Chikyuu Tougou Seifu) from the Japanese anime series Macross.
The Gutsy Galaxy Guard (A.K.A. "GGG"; pronounced "Three-G"), a branch of the United Nations Earth Defense Force in The King of Braves GaoGaiGar. The Secretary General of the UN in this show's universe is identified by name and visage as the character Rose Approval
The United Nations Special Agency NERV has a significant role in Neon Genesis Evangelion. The United Nations in the series is powerful and has a standing army (unlike in the real world, where UN Peacekeepers are small numbers of troops donated by countries). They directly control NERV, an organisation whose purpose is to defend humankind from the children of Adam.
FLAG, a documentary-style anime series from 2006, is about a fictional war in central Asia and the UN flag that is raised above the battlefield which may be the key to peace. United Nation peacekeepers involved in the anime are known as UNF (United Nations Forces) peacekeepers.
In Mobile Suit Gundam 00, the United Nations leads a large-scale UN Peacekeeping Army formed by the World Economic Union, the Human Reform Alliance, and the Advanced European Union, to defeat the paramilitary organization Celestial Being. In the series' second season, the UN is reformed as the Earth Sphere Federation, designed to unite all countries as one real entity. The UN General Assembly hall was shown in the last episode of the first season.
In the Wildstorm universe the UN, through its top-secret Special Security Council, has taken an active role in monitoring and dealing with posthumans and, to this end, formed both the superpowered Stormwatch - overseen from a satellite by their director, "The Weatherman" - and the non-superpowered Stormwatch: Team Achilles. The team's leader Jackson King is often portrayed in the UN buildings in New York and when he walks out and forms The Monarchy the UN assign special agent Morro to monitor his activities.
In several issues of Superman, he is mentioned as having coordinated his activities with the United Nations.
The UN is a recurring character in the Polandball universe, often portrayed as a teacher, a judge or as a mediator, often ignored by the other countries.
One of the novels in the Choose Your Own Adventure book series is called UN Adventure, where the reader is a Model United Nations delegate who can be tasked to handle diplomatic assignments. One of them is verifying the existence of nuclear weapons inside the fictional former Soviet republic of Arkistan.
In Arthur C. Clarke's 1953 novel Childhood's End a major character is Rikki Stormgren, the Secretary-General of the United Nations, a native of Finland who is chosen by the mysterious alien "Overlords", who took over the Earth, as their only liaison with the human race.
A recurring phrase in the CHERUB series of books is "Why don't you write a letter to the United Nations?", upon someone claiming unfair treatment or a breach of the rules of a training exercise.
In Isaac Asimov's Shah Guido G., the United Nations becomes a tyrannical and oppressive world government, with a dynasty of hereditary Secretaries-General, the title shortened to "Sekjen", acting as global absolute monarchs and ruling the Earth from a levitating island called Atlantis.
Poul Anderson's The Psychotechnic League starts in the aftermath of a devastating nuclear war in 1958 (a future date at the time of writing). The United Nations is re-founded at a conference in Rio de Janeiro.The UN creates a special corps of "Un-Men", the name having the double connotation of their being "UN Men" and of having superhuman powers. The UN is the unequivocal good guy of the series, reflecting Anderson's liberal views.
Emmanuel De Paolo, UN Secretary General, is a major character in Ben Bova's Millennium. In 1999 (a future date at the time of writing) the Secretary General watches helplessly as Americans and Soviets escalate towards a seemingly inevitable nuclear war when suddenly, the American and Soviet Moon colonists join forces and capture their respective countries' anti-ballistic missile satellites - giving them the power to interdict missiles and thus prevent the war. The Secretary General teams up with the rebels and gets many smaller nations to join, encouraged by the promise of effective weather control from orbit. Angry New York mobs set the UN Headquarters on fire.
In Robert Van Kampen's novel The Fourth Reich, Adolf Hitler's spirit is released from Hell and enters an embryo created from his cloned DNA. He's then born in Russia and grows up to become that country's dictator, eventually revealing his true identity to the world before the UN Assembly General and takes up the role of the Antichrist predicted in Christian eschatology.
In James S. A. Corey'sThe Expanse series of science fiction novels, the United Nations is the governing body of a united Earth, competing with the Mars-based MCR over asteroid belt resources.
In "Operation", from Jamie T's 2007 album Panic Prevention, he repeatedly sings "Take your problem to United Nations. Tell old Kofi about the situation", referring to Kofi Annan, who was Secretary-General of the United Nations at the time Jamie T wrote the song, but not by the time the album was released.
In "The Words That Maketh Murder", from PJ Harvey's 2011 album Let England Shake, Harvey sings "What if I take my problem to the United Nations?", referring both to Eddie Cochran's "Summertime Blues" and the United Nations' stated mission to promote peace.
League of Non-Aligned Worlds, Earth Alliance, and Interstellar Alliance from the Babylon 5 television series. The Babylon 5 station itself was originally created as a UN in space with a council comprising the major powers of the setting, namely the Earth Alliance, the Centauri, the Narn, the Vorlons, the Minbari and the League (whose members are individually represented but they share a single seat and vote on the council).
One Nation Earth (aka O.N.E.), from the Apocalypse film series, and headed by Franco Macalousso. O.N.E. is meant to be the one-world government as prophecised in the Bible.
United World Organization in the Batman television series.
United World Confederacy in the 2012 movie Iron Sky, though it is still referred to in dialogue as "the UN".
Systems Alliance in the Mass Effect video game series. The Citadel and its Council, comprising the three great powers of the Asari, Salarians and Turians, also function as an interstellar, interspecies United Nations. The Systems Alliance gains a seat on the Council after the events of the first game.