Meridian

Meridian or a meridian line (from Latin meridies via Old French meridiane, meaning “midday”) may refer to

Science

 * Meridian (astronomy), imaginary circle in a plane perpendicular to the planes of the celestial equator and horizon
 * Central meridian (astronomy)
 * Meridian (geography), a longitude line, i.e. a line of constant longitude, or in other words an imaginary arc on the Earth's surface from the North Pole to the South Pole
 * Meridian arc, the distance between two points with the same longitude
 * Prime meridian, origin of longitudes
 * Principal meridian, arbitrary meridians used as references in land surveying
 * Meridian line, used with a gnomon to measure solar elevation and time of year
 * Autonomous sensory meridian response, a static-like or tingling sensation on the skin

Cities and towns

 * Meridian, California (disambiguation), U.S., multiple California towns named Meridian
 * Meridian, Colorado, U.S.
 * Meridian Village, Colorado, U.S.
 * Meridian, Florida, U.S.
 * Meridian, Georgia, U.S.
 * Meridian, Idaho, U.S.
 * Meridian, Mississippi, U.S.
 * Meridian, Nebraska, U.S.
 * Meridian, New York, U.S.
 * Meridian, Oklahoma (disambiguation), U.S., multiple Oklahoma towns named Meridian
 * Meridian, Pennsylvania, U.S.
 * Meridian, Seattle, Washington, U.S.
 * Meridian, Texas, U.S.

Townships

 * Meridian Township, Clinton County, Illinois, U.S.
 * Meridian Charter Township, Michigan, U.S.

Buildings

 * Meridian (Amtrak station), or Union Station, Meridian, Mississippi, U.S.
 * Meridian Mall, Meridian Township, Michigan, U.S.
 * Meridian Mall, Dunedin, New Zealand
 * Meridian Hall (Washington, D.C.), listed on the National Register of Historic Places in Washington, D.C., U.S.
 * Meridian Manor, listed on the National Register of Historic Places in Washington, D.C., U.S.
 * Meridian Mansions, listed on the National Register of Historic Places in Washington, D.C., U.S.

Other places

 * Lake Meridian, Kent, Washington, U.S.
 * Meridian Creek, a stream in Alaska, U.S.
 * Meridian Glacier, Graham Land, Antarctica
 * Meridian Peak, Eagles Nest Wilderness, near Vail, Colorado, U.S.
 * Meridian Plantation, a quail-hunting plantation in Leon County, Florida, U.S., established in 1915

Print

 * Meridian (novel), 1976 novel by Alice Walker
 * Meridian (comics), 2000–2004 comic book series published by CrossGen
 * Meridian (W.I.T.C.H.), a fictional realm in the Italian comic book series W.I.T.C.H.
 * Meridians: Feminism, Race, Transnationalism (est. 2000), an interdisciplinary peer-reviewed feminist journal

Film and television

 * Meridian: Kiss of the Beast, 1990 horror and romance film directed by Charles Band
 * "Meridian" (Star Trek: Deep Space Nine), 1994 episode of the series
 * "Meridian" (Stargate SG-1), 2002 episode of the series
 * Meridian (film), 2016 film noir thriller directed by Curtis Clark
 * ITV Meridian (formerly Meridian Broadcasting), ITV station for the south and south-east of England

Music

 * Meridian Records, record label
 * Meridian Dawn, modern death metal band
 * Meridian Green, California-based folk musician
 * Meridian, 1997 album by Ian Pooley
 * Meridian (Miriam Yeung album), 2007 album by Miriam Young
 * Meridian (album), 2012 album by Pinegrove
 * "Meridian", 2017 song by Odesza from A Moment Apart

Other art

 * Meridian (Hepworth), 1960 bronze sculpture by British artist Barbara Hepworth

Business

 * Meridian Audio, British manufacturer of audio equipment
 * Meridian Credit Union, credit union based in Ontario, Canada
 * Meridian Energy, New Zealand electricity generation and electricity retailing company
 * Nortel Meridian, popular PBX telephone system

Education

 * Meridian High School (disambiguation)
 * Meridian Technology Center, Stillwater, Oklahoma, United States

Transportation

 * Meridian (train), British Rail Class 222 trains
 * Meridian (commuter rail), former commuter rail service in Germany operated by the Bayerische Oberlandbahn
 * MS Meridian, cruise ship constructed in 1961
 * Meridian (shipwreck), sunken schooner in Lake Michigan
 * Piper Meridian, turboprop model of the Piper PA-46 aircraft
 * Meridian LRT station, an LRT station on the Punggol LRT line East Loop in Singapore
 * Meridian Airways, a defunct Ghanaian airline

Other

 * Bill Meridian (fl. 1972–1983), a financial astrologer
 * Meridian (Chinese medicine), traditional Chinese medical theory, often employed in acupuncture
 * Meridian (horse), American Thoroughbred racehorse, winner of 1911 Kentucky Derby
 * Meridian (Nosgoth), the capitol of Nosgoth in Blood Omen 2: Legacy of Kain
 * Meridian (perimetry, visual field), polar coordinate system for the visual field
 * Meridian (satellite), a series of Russian military communications satellites
 * Meridian F.C., English non-league football club
 * Meridian Hospital, a private hospital in Port Harcourt, Rivers State, Nigeria
 * Meridian Lossless Packing, a lossless audio compression technique used in DVD-Audio, HD DVD, and many Blu-ray discs