Eos is the goddess of the dawn in Greek mythology.

Eos or EOS may also refer to:

Astronomy 221 Eos, an asteroid Eos cloud, a dark molecular cloud Eos Chasma, a depression on Mars Eos family, main-belt asteroids Earth Observing System, a NASA program

Literature Eos (imprint), an imprint of HarperCollins Publishing Eos (magazine), a weekly publication of the American Geophysical Union Eos Press, an American card games and role-playing game publisher

Music Eos (Terje Rypdal & David Darling album), 1984 Eos (Eldritch album), 2021 "E.O.S.", a 2004 trance music piece by Ronski Speed Echoes of Silence, a 2011 mixtape by the Weeknd Echoes of Silence (song), the mixtape's title track "EOS", a 2017 song by Rostam from Half-Light Emperor of Sand, a 2017 record by Mastodon

Places Eos Glacier, a glacier in Antarctica Mount Eos, a mountain in Antarctica

Science Eos (bird), a genus of lories (parrots) Eos (protein), a photoactivatable fluorescent protein Eosinophil, a variety of white blood cell Esterified omega-hydroxyacyl-sphingosine, a human lipoxygenase Ethanolamine-O-sulfate, a chemical compound used in biochemical research European Optical Society IKZF4 or zinc finger protein Eos, a protein in humans Equation of state Economies of scale

Technology EOS (medical imaging), a medical projection radiography system EOS.IO, a cryptocurrency Canon EOS, a series of film and digital cameras Electrical overstress, a type of electronic component failure EOS GmbH, a manufacturer of industrial 3D printers

Computing Cisco Eos, a software platform EOS (operating system), a supercomputer operating system in the 1980s EOS (8-bit operating system), a homecomputer operating system in the 1980s EOS memory, ECC on SIMMs, used in server-class computers Emulator Operating System, an operating system used in E-mu Emulator musical instruments Extensible Operating System, Arista Networks's single-network operating system Ethernet over SDH, a set of protocols for carrying Ethernet traffic /e/ (operating system), a free and open-source Android-based mobile operating system

Transportation Eos (yacht), a yacht owned by Barry Diller Eos Airlines, a defunct airline Grif Eos, an Italian hang glider design Volkswagen Eos, a coupé convertible vehicle made by Volkswagen

Video games E.O.S. or Earth Orbit Stations, a space station simulation by Electronic Arts Eos, a fictional world in Final Fantasy XV Eos, a fictional planet in Mass Effect: Andromeda Eos, a character in Red Faction Eos, a fictional planet in Star Wars: Starfighter Epic Online Services, an SDK for cross-platform play features

Other uses EOS (company), an American skin care company EOS Group, a financial services company End-of-sale Liwathon E.O.S. Norwegian Parliamentary Intelligence Oversight Committee or EOS Committee Eos (painting), an 1895 painting by Evelyn De Morgan Entrepreneurial Operating System, a business operating system

People with the given name Eos Counsell (born 1976), Welsh violinist Gaynor Rowlands or Eos Gwalia (1883–1906), English actress Eos Morlais (1841–1892), Welsh tenor

See also Aeos (disambiguation) AOS (disambiguation) EO (disambiguation) OS (disambiguation)