Science
* Halley's Comet, officially designated 1P/Halley, a comet that becomes visible from Earth every 75-76 years * Halley (lunar crater), a lunar crater named after Edmond Halley * Halley (Martian crater), a Martian crater named after Edmond Halley * Halley Research Station, a British research facility on the Brunt Ice Shelf floating on the Weddell Sea in AntarcticaEntertainment
* Halley (nightclub), a defunct Argentine nightclub * "Halley" (song), the Turkish entrant to the Eurovision Song Contest 1986 * "Halley" (film), a 2012 Mexican horror moviePeople
* Halley (surname), multiple people ** Edmond Halley (1656–1742), English astronomer * Halley (given name), multiple peopleSee also
* Haley (disambiguation) * Halle (disambiguation) * Hailey (disambiguation) * Hayley (disambiguation) *