{{Wiktionary}} An '''observer''' is one who engages in observation or in watching an experiment.
'''Observer''' may also refer to:
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==Fiction== * ''Observer'' (novel), a 2023 science fiction novel by Robert Lanza and Nancy Kress * ''Observer'' (video game), a cyberpunk horror video game * Observer (''Mystery Science Theater 3000''), a fictional television character * Observers, beings in the television show ''Fringe''
==Music== * "Observer", a song by Gary Numan on his album ''The Pleasure Principle'' * "The Observer", a track from The Flaming Lips' 1999 album ''The Soft Bulletin'' * The Observers, an alternative name for reggae session band Soul Syndicate
==Publications== * ''Observer'', online successor to ''The New York Observer'' * ''The Observer'', a UK Sunday newspaper & magazine * ''The Observer'' (disambiguation), multiple publications including newspapers, magazines & fiction * ''The APS Observer'', a member magazine of the Association for Psychological Science (APS)
==Science and technology == * Observer (general relativity) * Observer (quantum physics) * Observer (special relativity) * Observer (meteorological) * Observer pattern, a design pattern used in computer programming * State observer in control theory, a system that models a real system in order to provide an estimate of its internal state
==Other uses== * Observer status in an organization * The Observer type in the Enneagram of Personality model *Air observer, an aircrew member whose duties are predominantly reconnaissance, commonly used in the World War I era *Donald Alaster Macdonald (1859–1932), Australian journalist who wrote under the pseudonym 'Observer'
==See also== * Observer effect (disambiguation) * National Observer (disambiguation), a variety of publications * The Observer (disambiguation) * United Nations Military Observer * {{in title}}
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