en Janus (disambiguation)

Janus is the two-faced Roman god of gates, doors, doorways, beginnings, and endings.

Janus may also refer to:

Computing

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 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
Janus, a codename used for Windows 2000 (DEC Alpha and Itanium 64-bit editions)
Janus attack, an alternative name of a Man-in-the-middle attack

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

Janus Patera [it], 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

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 (album), the first full-length album released by Boyfriend

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.

Janus (genus), 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