Wikipedia:
Anonymous is the adjective form of anonymity, the state of an individual's personal identity, or personally identifiable information, being publicly unknown.
It may also refer to:
People
Anonymous work, a work of art or literature that has an anonymous or unknown creator or authorAnonymous IV, a 13th century English student of medieval music theory whose works are a major source for modern scholars of that eraAnonymous 4, female a cappella quartet, based in New York CityList of anonymously published worksJoe Klein, who used the pen name "Anonymous" while authoring Primary Colors
Groups
Anonymous (group), the collective name of individuals that participate in certain online hacking and real life activities.Anonymous for Animal Rights, an animal rights group based in IsraelAnonymous Operation, an internet hacking group related to Anonymous
Entertainment
Anonymous (film), a 2011 film"Anonymous" (CSI), a first season episode of TV crime drama CSI: Crime Scene InvestigationAnonymous (TV series), an Irish television show fronted by Jason Byrne Music
Rodney Anonymous, the stage name of Rodney Linderman, a Philadelphia musician and humoristJayson Sherlock, aka Anonymous, the single musician for the band HordeAnonymous (band), an Andorran bandAnonymous (Tomahawk album)Anonymous (Tyske Ludder album)"Anonymous" (Bobby Valentino song), 2007"Anonymous" (Sleater-Kinney song)"Anonymous" (Spacehog song)