List of fictional institutions

This is a list of notable fictional institutions. Articles in this list must have received significant coverage in reliable sources that are independent of the subject. Fictional institutions include:
Political/Governmental.
Government/international agencies.
Espionage/spy agencies.
"See also List of fictional secret police organizations"
Inter-political alliances.
Political parties.
"See List of fictional political parties"
Social.
"For fraternities and sororities, see List of fictional fraternities and sororities"