Anonymous may refer to:

• Anonymity, the state of an individual's identity, or personally identifiable information, being publicly unknown
  • Anonymous work, a work of art or literature that has an unnamed or unknown creator or author
• Anonymity (social choice), a property of a voting rule, saying that it does not discriminate apriori between voters

• Anonymous (hacker group), the collective name of loosely affiliated individuals who participate in hacktivism

• "Anonymous" (Australian Playhouse), an Australian television play
• Anonymous (film), a 2011 period drama film directed by Roland Emmerich
• Anonymous (TV series), a 2006 Irish television show
• "Anonymous" (CSI), a 2000 episode of CSI: Crime Scene Investigation
• "Anonymous" (NCIS: Los Angeles), a 2010 episode of NCIS: Los Angeles
• Hacker (film), a 2016 crime thriller, directed by Akan Satayev, released in theaters as Anonymous

• Anonymous (band), an Andorran band
• Anonymous (Blackbear album) (2019)
• Anonymous (Stray from the Path album) (2013)
• Anonymous (Tomahawk album) (2007)
• "Anonymous" (Bobby Valentino song) (2007)
• Anonymous, a 2009 album by Tyske Ludder
• "Anonymous", a song by Sleater-Kinney from the 1996 album Call the Doctor
• "Anonymous", a song by Spacehog from the 1998 album The Chinese Album
• "Anonymous", a song by Three Days Grace from Transit of Venus (2012)
• "A.N.O.N.Y.M.O.U.S.", a song by Reks from The Greatest X (2016)

• Rodney Anonymous (born 1963), Philadelphia musician and humorist
• Joe Klein or Anonymous (born 1946), author of Primary Colors: A Novel of Politics
• Jayson Sherlock or Anonymous (born 1969), Christian metal musician from Australia
• Miles Taylor (security expert), former Donald Trump administration staffer, who wrote an op-ed and a book under the pen name "Anonymous"

• Anonymous (statue), a statue in City Park, Budapest, Hungary
• Anon(ymous), a 2006 play by Naomi Iizuka

• Anon (disambiguation), for the abbreviation
• Anonymus (disambiguation)
• Anonymous IV, a 13th-century English student of medieval music theory
• Anonymous 4, a female a cappella quartet
• Anonymouse (collective), an anonymous Swedish artists collective
• Nomen nescio, used to signify an anonymous or non-specific person
• All pages with titles beginning with Anonymous
• All pages with titles containing Anonymous