Jupiter is the largest planet in the Solar System, named after Jupiter (god), king of the gods in ancient Roman mythology.

Jupiter may also refer to:

• Jupiter Fund Management, a British fund management company
• Jupiter Airlines, based in the United Arab Emirates
• Jupiter (company), a Japanese game and hardware development studio
• Jupiter Entertainment, an American television production company
• Jupiter Band Instruments, a brand of woodwind, brass, and percussion instruments
• Jupiter Hotel (Portland, Oregon), in the United States
• Jupiter Discount Stores, a former brand designation of Kmart for old S.S. Kresge stores

• Sailor Jupiter or Makoto Kino, in Sailor Moon
• Commander Jupiter, in Pokémon Diamond, Pearl, and Platinum
• Johnny Jupiter, title character in two separate early American television programs
• Jupiter Jones, from Three Investigators juvenile detective book series
• Jupiter Jones, from the 2015 science-fiction film Jupiter Ascending

• HMS Jupiter, six ships of the British Royal Navy
• USS Jupiter, two ships of the United States Navy
• French ship Jupiter (1789)
• French ship Jupiter (1831)
• Jupiter class minelayer, a four-ship class of Spanish mine layers which saw action in the Spanish Civil War
• Operation Jupiter (disambiguation), military operations
• Bristol Jupiter Fighter, an unsuccessful British biplane introduced in 1924
• PGM-19 Jupiter, a U.S. Air Force medium-range ballistic missile, produced from 1956 to 1961
• Jupiter Aerobatic Team, the Indonesian Air Force aerobatic display team

• Jupiter Stradivarius, a violin
• Jupiter, ex-Goding Stradivarius, a violin
• Roland Jupiter (disambiguation), various analog music synthesizers

• Jupiter (band), a Japanese power metal band

• "Jupiter" or Symphony No. 41, a symphony by Mozart
• "Jupiter, the Bringer of Jollity", the fourth movement in The Planets, Gustav Holst's orchestral suite

• Jupiter (Atheist album)
• Jupiter (Cave In album)
• Jupiter (Bump of Chicken album)

• "Jupiter" (hymn) or "I Vow to Thee, My Country", a British patriotic song and Anglican hymn
• "Jupiter" (Swallow the Moon), a song by Jewel from Spirit
• "Jupiter" (Earth, Wind & Fire song)
• "Jupiter" (Buck-Tick song)
• "Jupiter", from the album Transistor by 311
• "Jupiter", by Ayaka Hirahara
• "Jupiter", by Minako Honda from Ave Maria
• "Jupiter", from the album Freaked Out and Small by The Presidents of the United States of America
• "Jupiter", from the album Planetarium by Sufjan Stevens, Bryce Dessner, Nico Muhly and James McAlister

• "Jupiter", a track on the album Interstellar Space by John Coltrane
• Jupiter, disc 1 of Stadium Arcadium by the Red Hot Chili Peppers

• Jupiter Apple (1968–2015), Brazilian singer
• Jupiter Ghosh (born 1989), Bangladeshi cricketer
• Jupiter Hammon (1711–before 1806), poet and first African-American writer to be published in the present-day United States
• Jupiter Yves Ngangue (born 1980), Cameroonian former footballer

• Jupiter, Florida, a town
• Jupiter Island, a barrier island in Florida
• Jupiter, North Carolina, an unincorporated community
• Jupiter Township, Kittson County, Minnesota

• Jupiter, Romania, a summer resort on the Black Sea
• Jupiter Glacier, Alexander Island, Antarctica
• Jupiter Formation, a geologic formation in Quebec, Canada
• Jupiter River, a river in Anticosti Island, Quebec, Canada
• Jupiter Reef, a supposed, likely "phantom", reef in the South Pacific Ocean

• Windows UI Library, code name "Jupiter" supports XAML controls for Windows Runtime
• Jupiter JVM, the Java virtual machine
• Jupiter, the first stable version of the elementary OS Linux distribution
• Jupiter project, a DEC project for a PDP-10 replacement
• JUPITER trial, a clinical trial investigating rosuvastatin
• Jupiter (lens), a series of Soviet camera lenses
• Polyura jupiter, a butterfly of the family Nymphalidae
• Syntypistis jupiter, a species of moth of the family Notodontidae

• Rockets:
  • Jupiter-C, for sounding
  • Jupiter-A
• Jupiter (rocket family), a proposed family of space shuttle-derived launch vehicles
• Jupiter (spacecraft), a proposed space tug being developed by Lockheed Martin
• Mercury-Jupiter, the Jupiter variant of the Project Mercury rockets

• Jupiter (novel), a 2000 novel by Ben Bova
• Jupiter (magazine), edited by Ian Redman
• Jupiter Award (science fiction award) for writing (presented infrequently from 1974 to 1978)
• Jupiter 2, a spaceship in the television series Lost in Space

• Halton Jupiter, a 1970s British human-powered aircraft
• MV Jupiter, various ships
• MS Jupiter, a cruiseferry
• Jupiter (tugboat), preserved in Philadelphia, Pennsylvania
• Jupiter (locomotive), a steam-powered locomotive
• Jowett Jupiter, a sports car
• Moynet Jupiter, unsuccessful executive airplane model, introduced 1963
• Bristol Jupiter, a British radial aeroplane engine, developed during First World War
• Júpiter (Mexico City Metrobús), a BRT station in Mexico City
• TVS Jupiter, a scooter manufactured by TVS Motor Company
• SS Jupiter (Ropner, 1895), a British cargo ship in service 1895-1926
• FV Jupiter, a German fishing trawler and vorpostenboot in service 1936-44

• CE Júpiter, a Spanish football club based in Barcelona
• Jupiter (ice hockey team), a defunct team that was based in Kharkiv, Ukraine
• Jupiter (roller coaster), a wooden roller coaster in Beppu, Ōita, Japan
• Jupiter (apple), an apple cultivar
• Jupiter grape, an interspecific seedless Muscat grape
• Jupiter (given name)
• Jupiter Community High School, Jupiter, Florida
• Jupiter Christian School, Jupiter, Florida
• Jupiter field, a natural gas and oil field in the Atlantic Ocean off Brazil
• GSP Jupiter, a drilling rig in the Black Sea
• Jupiter, an award presented at the L'International des Feux Loto-Québec fireworks festival
• Winter Storm Jupiter, a 2017 U.S. storm

• Jupiter Amphitheatre, a valley in Victoria Land, Antarctica
• Jupiter and Lake Worth Railway in Florida
• Project Jupyter, nonprofit computing organization
• Jupiters, a Pakistani music band
• Jupiters Hotel & Casino (of Gold Coast, Queensland, Australia; now rebranded as The Star Gold Coast)
• Jupiters Limited, Australian gambling company that merged with Tabcorp
• Jupiler, a Belgian beer
• All pages with titles beginning with Jupiter
• All pages with titles containing Jupiter