ET or et may refer to:

• E.T. the Extra-Terrestrial, a 1982 film
  • E.T. the Extra-Terrestrial (video game), a 1982 video game
  • E.T. the Extra-Terrestrial (soundtrack), a soundtrack score album by John Williams
  • E.T. the Extra-Terrestrial (album), an audiobook album by Michael Jackson and the original cast
  • E.T. (character), the titular alien from the film

• Eastern Television, a Taiwanese television network
• Entertainment Tonight, an American television entertainment news show
• Etharkkum Thunindhavan, a 2022 Indian film

• Electro Team, a Croatian hip hop/eurodance band
• "E.T." (song), by Katy Perry, 2011
• "E.T.", a song by Toy-Box from Fantastic, 1999
• "ET (Extraterrestrial)", a song by OutKast from ATLiens, 1996

• Empire Times, an Australian student newspaper at Flinders University
• The Epoch Times, a newspaper
• Economic Times (disambiguation), several newspapers

• ET, NYSE stock symbol for Energy Transfer Partners, American pipeline company
• et, the ISO 639 code for the Estonian language
• et, the ISO 3166-1 country code for Ethiopia
  • .et, the country code top-level domain (ccTLD) for Ethiopia
• ET, IATA airline designator for Ethiopian Airlines

• ET tube, or endotracheal tube
• Essential thrombocythemia, a chronic blood cancer
• Essential tremor, a neurological disorder characterized by shaking of hands and limbs
• Evapotranspiration, a sum of evaporation and plant transpiration

• Electron transfer, the move of an electron from one atom or molecule to another
• Ethyl group, a functional group in organic chemistry

• Electromagnetic testing
• Electron tomography
• Envelope tracking, a technique to provide a dynamic power supply to RF power amplifier
• Extraterrestrial life
• Köppen climate classification for tundra
• Space Shuttle external tank

• Andrew Ettingshausen, rugby league footballer
• E Thi, Burmese fortune teller
• Eric Thomas (motivational speaker)
• Errol Thompson (audio engineer), dub producer

• Ampersand punctuation mark (&), originally derived from Latin et
• Electronics Technician, a rating in the United States Navy
• Eastern Time Zone, a time zone in North America
• Et (Armenian letter), a letter in the Armenian alphabet

• Extraterrestrial (disambiguation)
• All pages with titles beginning with et
• All pages with titles beginning with ET
• All pages with titles containing ET