Janus is the two-faced Roman god of gates, doors, doorways, beginnings, and endings.
Janus may also refer to:
Computing Janus, a codename used for Windows 2000 (DEC Alpha and Itanium 64-bit editions) Janus, a conflict simulation model, one of the world’s first near-real-time, player-interactive combat simulators Janus (concurrent constraint programming language) Janus (DRM), a Microsoft Digital Rights Management platform Janus (protocol), a file transfer protocol for use on bulletin board systems Janus (time-reversible computing programming language) Janus attack, an alternative name of a Man-in-the-middle attack JANUS clinical trial data repository, a standard supported by the U.S. Food and Drug Administration Janus Recognition Toolkit (JRTk), a general purpose speech recognition toolkit
People Janus (given name) Janus (surname) Janus Prospero from the Resident Evil film series Janus of Cyprus (1375–1432), king of Cyprus from 1398 to 1432 Janus I, Duke of Masovia J'anus, the claimed stage name of Janis McGavin, a performer on Balls of Steel Australia
Astronomy , a shallow volcanic crater on Io, a moon of Jupiter Janus (moon), a moon of Saturn Janus (star), the name given to the hydrogen-helium faced white dwarf star ZTF J203349.8+322901.1
Performing arts Music Janus Records, a record label Janvs, a black metal band from Liguria, Italy Janus (musical project), a German darkwave musical project established 1995 Janus (American band), hard rock band, established in the mid-1990s in Chicago, Illinois Janus (English band), progressive rock band established in 1969 in Krefeld, Germany Janus (album), the first full-length album released by Boyfriend
Film Janus Films, an American film distribution company Janus, the criminal organization in the James Bond movie GoldenEye The Janus Project, a taboo cloning project in the movie Judge Dredd
Other performing arts Janus (play), a 1955 Broadway romantic comedy Janus (TV series), an Australian drama television series
Printed media Comics Janus (comics), a list of characters Janus (Marvel Comics), Marvel Comics character Janus, DC Comics character known as Two-Face Janus, character in the novel Angels & Demons
Other printed media Janus (journal) (1896–1990), an academic journal on history of science and medicine published in Amsterdam Janus (science fiction magazine), a feminist science fiction magazine published from 1975-1980 Janus: A Summing Up, a 1978 book by Arthur Koestler The Janus branch of the Cahill family in The 39 Clues Janus word or auto-antonym, a word with multiple meanings in which one is the reverse of another Janus, a French poetry magazine published in Paris by Elliott Stein from 1950 to 1961 Janus (1971-2007), a British fetish magazine of erotic spanking and caning imagery.
Games and gaming Janus Chess, a chess variant Janus Zeal, a character in the game Chrono Trigger
Places Janus Island, an island of the Palmer Archipelago, Antarctica Mont Janus, a mountain near Mont Chaberton, France
Science Janus (sawfly), a genus of stem sawflies in the family Cephidae Janus-faced molecule, used to describe a molecule whose effects on organisms can vary between beneficial and toxic Janus Experiments, a series of experiments on radio-sensitivity in mice and dogs Janus kinase, an intracellular signalling molecule; component of the JAK-STAT signal system Janus kinase inhibitor, a medication that inhibits the activity of the Janus kinase enzymes Janus particle, an amphiphilic particle with a surface that is half hydrophilic half hydrophobic Janus TMD monolayers, a type of asymmetric transition-metal dichalcogenide monolayers Janus (spacecraft), a NASA mission to binary asteroids
Transportation and vehicular Janus (1810 ship) (1810–1832), built in New York, U.S. HMS Janus, a name used by British naval ships Schempp-Hirth Janus, a German two-seater glider Yorkshire Engine Company Janus, a British diesel shunting locomotive Zündapp Janus, a bubble car model by Zündapp Janus Motorcycles, a motorcycle manufacturer based in Goshen, Indiana
Other uses Janus Capital Group, an investment company based in Denver, Colorado Janus v. AFSCME, U.S. Supreme Court case (2018) Society of Janus, a San Francisco-based BDSM education and support group Janus, catalogue database of Cambridge University Library Janus, a sculpture by Clement Meadmore created for the Ruta de la Amistad in Mexico City
See also Janis (disambiguation) Janice (disambiguation) Janusz