List of fictional espionage organizations

Fictional espionage organizations with fancy-sounding acronyms are a common theme in spy fiction.

During the 1960s trend for action-adventure spy thrillers, it was a common practice for fictional spy organizations or their nemeses to employ names that were contrived acronyms. Sometimes these acronyms' expanded meanings made sense, but most of the time they were words incongruously crammed together for the mere purpose of obtaining a catchy acronym, traditionally a heroic sounding one for the good guys and an appropriately menacing one for the bad guys. This has become one of the most commonly parodied clichés of the spy thriller genre. They were presumably inspired by SMERSH, which appeared in the James Bond stories and sounded fictional, but really was a branch of Soviet intelligence. These acronyms are often spelled with periods/points/stops to make it clear that they stand for longer terms and are not simply the usual English words that they resemble, even though the punctuation would otherwise seem to indicate that the abbreviations should be pronounced as the names of the individual letters.

Among the most popular:

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