H<sub>2</sub>O is the chemical formula for water, which means that each of its molecules contains one oxygen and two hydrogen atoms.

H<sub>2</sub>O or H2O may also refer to:

Arts, entertainment and media

Music

  • H<sub>2</sub>O (American band), a punk band
  • H<sub>2</sub>O (H<sub>2</sub>O album), 1996
  • H<sub>2</sub>O (Scottish band), a pop band
  • H<sub>2</sub>O (Puerto Rican band), a boy band
  • H Two O, a British bassline duo
  • H<sub>2</sub>O (Hall & Oates album), 1982
  • "H<sub>2</sub>O", a song by Leslie Cheung from Leslie, 1984

Film and television

  • H<sub>2</sub>O (1929 film), a short silent film by Ralph Steiner
  • H<sub>2</sub>O (2002 film), an Indian Kannada-Tamil bilingual film
  • H<sub>2</sub>O (miniseries), a Canadian TV drama
  • H<sub>2</sub>O: Footprints in the Sand, a Japanese visual novel, game, manga and anime
  • H<sub>2</sub>O: Just Add Water, an Australian TV drama series
  • H<sub>2</sub>O: Mermaid Adventures, an animated spin-off of the original series

Other uses

  • Properties of water
  • H2O Networks, a British telecommunications company
  • H<sub>2</sub>O Retailing
  • H2O Wireless, an American telecommunications company
  • H2O (web server), a free and open-source web server software
  • List of soft drinks by country

See also

  • H20 (disambiguation) (H twenty)
  • Hoh (disambiguation) (Hoh or HOH)
  • Water (disambiguation)
  • Dihydrogen monoxide parody