An impostor or imposter is a person who pretends to be somebody else.

Impostor(s), Imposter(s), The Impostor(s), or The Imposter(s) may also refer to:

• Impostor (computer graphics) or sprite, an image or animation integrated into a larger scene
• Impostors, a fictional alien race and the antagonists of the 2018 social deduction game Among Us

• The Impostor (1918 film) [it], a film by George Abbott and Dell Henderson
• Impostor (1921 film), a German silent film
• The Impostor (1921 film), a film by Robert N. Bradbury
• The Impostor (1926 film), a film starring Evelyn Brent
• The Impostor (1927 film), a German silent film
• The Impostor (1944 American film), a film by Julien Duvivier
• The Impostor (1944 German film), a German comedy film
• The Imposter (1975 American film), a TV film starring Meredith Baxter
• The Imposter (1975 Hong Kong film), a film produced by Shaw Brothers
• The Imposter, a 1984 TV film featuring Ken Olandt
• El Impostor (film), a 1997 American film produced by Oscar Kramer
• The Impostors, a 1998 film by Stanley Tucci
• Impostor (2001 film), a science fiction film
• The Imposter (2008 film), a Christian film by Dan Millican
• The Imposter (2012 film), a documentary about the 1997 case of Frédéric Bourdin

• Impostor (short story), a 1953 science fiction story by Philip K. Dick
• The Imposter (novel), a 1927 novel by the French writer Georges Bernanos
• "The Imposter" (short story), a 1997 story by Nathanael West
• The Impostor, a 1977 novel by Helen McCloy
• The Impostors (play), a 1789 play by Richard Cumberland
• El Impostor [es], a 2014 novel by Javier Cercas
• L'impostore, an 18th-century play by Carlo Goldoni
• If I Were for Real (play), a 1979 Chinese play, also translated as The Impostor
• Tartuffe (full title: Tartuffe, or the Impostor), a 1664 comedic play by Molière

• Imposter (album), a 2021 album by Dave Gahan and Soulsavers
• The Imposter (album), a 2005 album by Kevin Max
• The Impostor (Banjo Concerto), a 2011 concerto by Béla Fleck
• "Imposter", a 1981 song by The Moondogs
• "Imposter", a song by Oingo Boingo from the 1981 album Only a Lad
• "Impostor", a song by The Doubleclicks from the 2013 album Lasers and Feelings
• The Imposters, a backing band for Elvis Costello

• Impostor (TV series), a 2010 Philippine TV series starring Maja Salvador and Melai Cantiveros
• The Imposter, a syndication title for the DuMont TV series Colonel Humphrey Flack (1953–54)
• Imposters (TV series), a 2017 American television series on Bravo
• "The Impostors" (Thunderbirds), an episode of Thunderbirds
• The Imposters, a hidden-camera television pilot co-starring comedian Mal Sharpe
• L'Imposteur ("The Imposter"), a 2016 Québec television series starring Marc-André Grondin
• Impostora (The Impostor), a 2008 Philippine television series starring Sunshine Dizon and Iza Calzado
  • Impostora (Impostor), a 2017 Philippine television series starring Kris Bernal
• "Imposters" (Star Trek: Picard), an episode of the third season of Star Trek: Picard
• Imposter: The Man Who Came Back from the Dead, a 2024 Channel 4 documentary about Nicholas Alahverdian

• All pages with titles beginning with Impostor
• Impostor syndrome, when a person is unable to internalize accomplishments
• Masih ad-Dajjal ("The Impostor Messiah"), an evil figure in Islamic eschatology
• The Imposture, a 1640 play by James Shirley