Equinox commonly refers to:
- Equinox, the instant of time when the plane of Earth's equator passes through the center of the Sun
- Equinox (celestial coordinates), either of two places on the celestial sphere at which the ecliptic intersects the celestial equator
Equinox may also refer to:
Arts and entertainment
Fictional characters
- Equinox (comics), a Marvel Comics supervillain
- Equinox (DC Comics), a DC comics character, son of Power Girl
Film and television
- Equinox (1970 film), an American horror film
- Equinox (1986 film), a Canadian drama film
- Equinox (1992 film), an American film
- Equinox (TV series), a British science and documentary programme 1986–2006
- Equinox (2020 TV series), a Danish TV series
- "Equinox" (Star Trek: Voyager), an episode of the TV series
Gaming
- Equinox (1986 video game)
- Equinox (1993 video game)
Literature
- Equinox (novel), a 1973 novel by Samuel R. Delany
- The Equinox, a occultism periodical 1909–1998
- EQuinox, the official magazine of EverQuest II
Music
Bands
- Equinox (thrash metal band), from Norway, started in 1987
- Equinox (electro-industrial band), a 1998 project of Front Line Assembly
- Equinox Drum and Bugle Corps, a marching band from Biggleswade, England
- Equinox (Bulgarian band), Eurovision Song Contest 2018 contestants
Opera
- Equinox (opera), a Slovene-language opera by Marjan Kozina
Albums
- Equinox (Sérgio Mendes album), 1967
- Equinox (Red Garland album), 1979
- Equinox (Omar Rodríguez-López album), 2013
- Equinox (Styx album), 1975
- Equinox (EP), by Northlane and In Hearts Wake, 2016
- Équinoxe, by Jean Michel Jarre, 1978
- The Equinox (album), by Organized Konfusion, 1997
Songs
- Equinox (jazz standard), by John Coltrane, 1964
- "Equinox", by Heaven Shall Burn, from the 2008 album Iconoclast (Part 1: The Final Resistance)
- "First of the Year (Equinox)" by Skrillex, 2011
Businesses
- Equinox Group, an American luxury fitness company
- Equinox Minerals, a mining company headquartered in Canada and Australia
- Equinox (MLM), a defunct multi-level marketing company
- Equinox Systems, manufacturer of serial communications devices, acquired by Avocent
- Equinox Payments, formerly Hypercom, an electronic payment processing company
Computing
- Equinox (Amiga demogroup), 1987–1996
- Equinox (Atari demogroup), 1988–2007
- Equinox Desktop Environment, a lightweight desktop environment for the X Window system
- Equinox (OSGi), an Eclipse project to implement OSGi R4.x
Places
- Equinox Mountain, Vermont, U.S.
Sports
- Vin Gerard (born 1986), ring name Equinox
- Jimmy Olsen (wrestler) (born 1986), ring name Equinox
- Equinox Marathon, an annual running marathon in Fairbanks, Alaska, U.S.
Transportation
- Celebrity Equinox, cruise ship launched in 2009
- Chevrolet Equinox, a General Motors SUV
See also
- Spring equinox (disambiguation)
- Autumnal equinox (disambiguation)
- Equinox Day (disambiguation)
- Solstice (disambiguation)